[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø51.9 mm and length at least 225.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.9 mm over length 102.4 mm (from Z=0.0 to Z=102.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.3 mm over length 53.1 mm (from Z=0.0 to Z=118.3).
10. Finish turn diameter Ø30.0 mm over length 65.2 mm (from Z=0.0 to Z=65.2).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø38.2 mm and length at least 198.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.2 mm over length 14.9 mm (from Z=0.0 to Z=14.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 178.9 mm (from Z=0.0 to Z=178.9).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø71.3 mm and length at least 205.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø69.3 mm over length 97.8 mm (from Z=0.0 to Z=97.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø69.3 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø61.9 mm over length 70.6 mm (from Z=0.0 to Z=102.9).
10. Finish turn diameter Ø45.0 mm over length 32.3 mm (from Z=0.0 to Z=32.3).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø61.0 mm and length at least 170.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.0 mm over length 29.2 mm (from Z=0.0 to Z=29.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø55.4 mm over length 49.0 mm (from Z=0.0 to Z=136.4).
9. Finish turn diameter Ø49.2 mm over length 18.8 mm (from Z=0.0 to Z=87.4).
10. Finish turn diameter Ø30.0 mm over length 68.6 mm (from Z=0.0 to Z=68.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø81.9 mm and length at least 145.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.9 mm over length 35.7 mm (from Z=0.0 to Z=35.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø68.8 mm over length 33.4 mm (from Z=0.0 to Z=104.6).
9. Finish turn diameter Ø54.4 mm over length 29.8 mm (from Z=0.0 to Z=71.2).
10. Finish turn diameter Ø39.2 mm over length 41.4 mm (from Z=0.0 to Z=41.4).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø81.0 mm and length at least 223.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.0 mm over length 29.5 mm (from Z=0.0 to Z=29.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø74.6 mm over length 61.0 mm (from Z=0.0 to Z=189.4).
10. Finish turn diameter Ø70.7 mm over length 44.9 mm (from Z=0.0 to Z=128.4).
11. Finish turn diameter Ø55.3 mm over length 39.4 mm (from Z=0.0 to Z=83.5).
12. Finish turn diameter Ø51.6 mm over length 44.1 mm (from Z=0.0 to Z=44.1).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø38.0 mm and length at least 174.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.0 mm over length 25.2 mm (from Z=0.0 to Z=25.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 144.6 mm (from Z=0.0 to Z=144.6).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 323.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 213.2 mm (from Z=0.0 to Z=213.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø27.6 mm over length 105.5 mm (from Z=0.0 to Z=105.5).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 244.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 174.1 mm (from Z=0.0 to Z=174.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø26.5 mm over length 65.1 mm (from Z=0.0 to Z=65.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø32.0 mm and length at least 72.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 32.3 mm (from Z=0.0 to Z=32.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø21.9 mm over length 35.1 mm (from Z=0.0 to Z=35.1).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 88.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 38.0 mm (from Z=0.0 to Z=38.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø19.9 mm over length 45.5 mm (from Z=0.0 to Z=45.5).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø41.8 mm and length at least 105.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø39.8 mm over length 5.0 mm (from Z=0.0 to Z=5.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø39.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø31.2 mm over length 37.4 mm (from Z=0.0 to Z=95.6).
9. Finish turn diameter Ø30.0 mm over length 58.2 mm (from Z=0.0 to Z=58.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø75.1 mm and length at least 272.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.1 mm over length 44.4 mm (from Z=0.0 to Z=44.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.1 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø70.0 mm over length 113.6 mm (from Z=0.0 to Z=222.8).
10. Finish turn diameter Ø59.4 mm over length 109.2 mm (from Z=0.0 to Z=109.2).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø51.4 mm and length at least 307.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.4 mm over length 71.9 mm (from Z=0.0 to Z=71.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø38.6 mm over length 76.6 mm (from Z=0.0 to Z=230.5).
10. Finish turn diameter Ø30.0 mm over length 153.9 mm (from Z=0.0 to Z=153.9).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø67.8 mm and length at least 141.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.8 mm over length 38.4 mm (from Z=0.0 to Z=38.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø65.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø56.6 mm over length 23.6 mm (from Z=0.0 to Z=97.9).
9. Finish turn diameter Ø49.2 mm over length 74.3 mm (from Z=0.0 to Z=74.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 317.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 243.5 mm (from Z=0.0 to Z=243.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø24.7 mm over length 69.1 mm (from Z=0.0 to Z=69.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø68.6 mm and length at least 250.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.6 mm over length 35.2 mm (from Z=0.0 to Z=35.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø66.6 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø61.3 mm over length 86.3 mm (from Z=0.0 to Z=210.3).
10. Finish turn diameter Ø53.4 mm over length 20.9 mm (from Z=0.0 to Z=124.0).
11. Finish turn diameter Ø49.7 mm over length 46.3 mm (from Z=0.0 to Z=103.1).
12. Finish turn diameter Ø45.6 mm over length 19.4 mm (from Z=0.0 to Z=56.8).
13. Finish turn diameter Ø32.6 mm over length 37.4 mm (from Z=0.0 to Z=37.4).
14. Break all edges (e.g., 2×45° where applicable).
15. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 166.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 113.7 mm (from Z=0.0 to Z=113.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø25.6 mm over length 47.7 mm (from Z=0.0 to Z=47.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø45.3 mm and length at least 148.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø43.3 mm over length 7.3 mm (from Z=0.0 to Z=7.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø43.3 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø39.2 mm over length 34.8 mm (from Z=0.0 to Z=135.7).
10. Finish turn diameter Ø30.0 mm over length 100.9 mm (from Z=0.0 to Z=100.9).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø52.2 mm and length at least 195.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø50.2 mm over length 33.4 mm (from Z=0.0 to Z=33.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø50.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.3 mm over length 43.1 mm (from Z=0.0 to Z=156.6).
10. Finish turn diameter Ø30.0 mm over length 113.5 mm (from Z=0.0 to Z=113.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø58.4 mm and length at least 181.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.4 mm over length 23.0 mm (from Z=0.0 to Z=23.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø38.7 mm over length 13.8 mm (from Z=0.0 to Z=153.9).
10. Finish turn diameter Ø30.0 mm over length 140.1 mm (from Z=0.0 to Z=140.1).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø70.2 mm and length at least 257.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.2 mm over length 88.2 mm (from Z=0.0 to Z=88.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø68.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø52.0 mm over length 67.8 mm (from Z=0.0 to Z=164.6).
10. Finish turn diameter Ø48.6 mm over length 96.8 mm (from Z=0.0 to Z=96.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.4 mm and length at least 268.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.4 mm over length 124.8 mm (from Z=0.0 to Z=124.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 138.8 mm (from Z=0.0 to Z=138.8).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø51.6 mm and length at least 153.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.6 mm over length 45.7 mm (from Z=0.0 to Z=45.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø32.1 mm over length 34.6 mm (from Z=0.0 to Z=102.8).
9. Finish turn diameter Ø30.0 mm over length 68.2 mm (from Z=0.0 to Z=68.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø43.7 mm and length at least 133.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.7 mm over length 47.1 mm (from Z=0.0 to Z=47.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.7 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 81.4 mm (from Z=0.0 to Z=81.4).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø55.0 mm and length at least 128.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.0 mm over length 26.6 mm (from Z=0.0 to Z=26.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø34.5 mm over length 12.9 mm (from Z=0.0 to Z=97.0).
9. Finish turn diameter Ø30.0 mm over length 84.1 mm (from Z=0.0 to Z=84.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø37.9 mm and length at least 164.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø35.9 mm over length 57.8 mm (from Z=0.0 to Z=57.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø35.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 101.4 mm (from Z=0.0 to Z=101.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø63.9 mm and length at least 264.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø61.9 mm over length 65.6 mm (from Z=0.0 to Z=65.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø61.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø54.5 mm over length 109.7 mm (from Z=0.0 to Z=194.2).
10. Finish turn diameter Ø39.6 mm over length 84.5 mm (from Z=0.0 to Z=84.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø72.0 mm and length at least 210.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø70.0 mm over length 83.9 mm (from Z=0.0 to Z=83.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø70.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø62.2 mm over length 69.7 mm (from Z=0.0 to Z=121.3).
10. Finish turn diameter Ø47.6 mm over length 51.6 mm (from Z=0.0 to Z=51.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø75.8 mm and length at least 180.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.8 mm over length 40.3 mm (from Z=0.0 to Z=40.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.2 mm over length 32.9 mm (from Z=0.0 to Z=134.8).
9. Finish turn diameter Ø54.5 mm over length 43.9 mm (from Z=0.0 to Z=101.9).
10. Finish turn diameter Ø49.4 mm over length 16.4 mm (from Z=0.0 to Z=58.0).
11. Finish turn diameter Ø31.7 mm over length 41.6 mm (from Z=0.0 to Z=41.6).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø54.3 mm and length at least 93.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø52.3 mm over length 19.9 mm (from Z=0.0 to Z=19.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø52.3 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø33.4 mm over length 13.9 mm (from Z=0.0 to Z=68.6).
9. Finish turn diameter Ø30.0 mm over length 54.7 mm (from Z=0.0 to Z=54.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø73.2 mm and length at least 238.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø71.2 mm over length 16.0 mm (from Z=0.0 to Z=16.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø71.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø65.4 mm over length 77.0 mm (from Z=0.0 to Z=217.7).
10. Finish turn diameter Ø58.4 mm over length 16.7 mm (from Z=0.0 to Z=140.7).
11. Finish turn diameter Ø44.0 mm over length 49.2 mm (from Z=0.0 to Z=124.0).
12. Finish turn diameter Ø30.5 mm over length 51.6 mm (from Z=0.0 to Z=74.8).
13. Finish turn diameter Ø30.0 mm over length 23.2 mm (from Z=0.0 to Z=23.2).
14. Break all edges (e.g., 2×45° where applicable).
15. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø32.0 mm and length at least 72.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 53.5 mm (from Z=0.0 to Z=53.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø26.3 mm over length 13.7 mm (from Z=0.0 to Z=13.7).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø34.0 mm and length at least 73.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.0 mm over length 17.7 mm (from Z=0.0 to Z=17.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 51.2 mm (from Z=0.0 to Z=51.2).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø45.0 mm and length at least 150.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø43.0 mm over length 35.4 mm (from Z=0.0 to Z=35.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø43.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø33.4 mm over length 15.9 mm (from Z=0.0 to Z=109.8).
10. Finish turn diameter Ø30.0 mm over length 93.9 mm (from Z=0.0 to Z=93.9).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø74.2 mm and length at least 201.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.2 mm over length 27.0 mm (from Z=0.0 to Z=27.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø57.5 mm over length 44.0 mm (from Z=0.0 to Z=169.8).
10. Finish turn diameter Ø41.2 mm over length 40.1 mm (from Z=0.0 to Z=125.8).
11. Finish turn diameter Ø30.0 mm over length 85.7 mm (from Z=0.0 to Z=85.7).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø57.5 mm and length at least 293.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.5 mm over length 35.0 mm (from Z=0.0 to Z=35.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø49.2 mm over length 25.2 mm (from Z=0.0 to Z=253.1).
10. Finish turn diameter Ø33.5 mm over length 163.8 mm (from Z=0.0 to Z=227.9).
11. Finish turn diameter Ø30.0 mm over length 64.1 mm (from Z=0.0 to Z=64.1).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø39.9 mm and length at least 298.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø37.9 mm over length 73.7 mm (from Z=0.0 to Z=73.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø37.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø31.2 mm over length 59.4 mm (from Z=0.0 to Z=220.1).
10. Finish turn diameter Ø30.0 mm over length 160.7 mm (from Z=0.0 to Z=160.7).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø39.2 mm and length at least 196.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø37.2 mm over length 58.2 mm (from Z=0.0 to Z=58.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø37.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø32.4 mm over length 74.3 mm (from Z=0.0 to Z=133.3).
10. Finish turn diameter Ø30.0 mm over length 59.0 mm (from Z=0.0 to Z=59.0).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø65.7 mm and length at least 150.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.7 mm over length 38.5 mm (from Z=0.0 to Z=38.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.7 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø52.3 mm over length 62.4 mm (from Z=0.0 to Z=106.8).
9. Finish turn diameter Ø39.5 mm over length 44.4 mm (from Z=0.0 to Z=44.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø38.4 mm and length at least 71.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.4 mm over length 17.8 mm (from Z=0.0 to Z=17.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 49.1 mm (from Z=0.0 to Z=49.1).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 202.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 156.5 mm (from Z=0.0 to Z=156.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø19.8 mm over length 41.4 mm (from Z=0.0 to Z=41.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø45.4 mm and length at least 163.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø43.4 mm over length 23.9 mm (from Z=0.0 to Z=23.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø43.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø31.6 mm over length 37.0 mm (from Z=0.0 to Z=134.8).
10. Finish turn diameter Ø30.0 mm over length 97.8 mm (from Z=0.0 to Z=97.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø48.8 mm and length at least 129.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.8 mm over length 5.0 mm (from Z=0.0 to Z=5.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø46.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø36.8 mm over length 32.5 mm (from Z=0.0 to Z=119.5).
9. Finish turn diameter Ø31.5 mm over length 36.5 mm (from Z=0.0 to Z=87.0).
10. Finish turn diameter Ø30.0 mm over length 50.5 mm (from Z=0.0 to Z=50.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø32.6 mm and length at least 150.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.6 mm over length 58.5 mm (from Z=0.0 to Z=58.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 87.4 mm (from Z=0.0 to Z=87.4).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø32.1 mm and length at least 278.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.1 mm over length 103.8 mm (from Z=0.0 to Z=103.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.1 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 169.9 mm (from Z=0.0 to Z=169.9).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø53.6 mm and length at least 228.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.6 mm over length 71.1 mm (from Z=0.0 to Z=71.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.6 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø34.5 mm over length 72.9 mm (from Z=0.0 to Z=152.8).
10. Finish turn diameter Ø30.0 mm over length 79.9 mm (from Z=0.0 to Z=79.9).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø79.2 mm and length at least 194.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.2 mm over length 33.5 mm (from Z=0.0 to Z=33.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.2 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø64.5 mm over length 57.9 mm (from Z=0.0 to Z=156.0).
9. Finish turn diameter Ø58.6 mm over length 81.3 mm (from Z=0.0 to Z=98.1).
10. Finish turn diameter Ø55.0 mm over length 16.8 mm (from Z=0.0 to Z=16.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø34.3 mm and length at least 127.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.3 mm over length 29.9 mm (from Z=0.0 to Z=29.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.3 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 92.1 mm (from Z=0.0 to Z=92.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø73.3 mm and length at least 109.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø71.3 mm over length 28.4 mm (from Z=0.0 to Z=28.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø71.3 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø68.1 mm over length 6.5 mm (from Z=0.0 to Z=75.9).
9. Finish turn diameter Ø48.8 mm over length 15.7 mm (from Z=0.0 to Z=69.4).
10. Finish turn diameter Ø34.6 mm over length 5.0 mm (from Z=0.0 to Z=53.7).
11. Finish turn diameter Ø30.0 mm over length 48.7 mm (from Z=0.0 to Z=48.7).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø55.7 mm and length at least 179.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.7 mm over length 67.3 mm (from Z=0.0 to Z=67.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.7 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø39.4 mm over length 89.9 mm (from Z=0.0 to Z=107.2).
9. Finish turn diameter Ø30.0 mm over length 17.3 mm (from Z=0.0 to Z=17.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø43.1 mm and length at least 218.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.1 mm over length 41.2 mm (from Z=0.0 to Z=41.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.1 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 171.8 mm (from Z=0.0 to Z=171.8).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 143.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 123.7 mm (from Z=0.0 to Z=123.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø22.4 mm over length 14.3 mm (from Z=0.0 to Z=14.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø53.9 mm and length at least 117.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.9 mm over length 41.0 mm (from Z=0.0 to Z=41.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø41.3 mm over length 5.2 mm (from Z=0.0 to Z=71.2).
9. Finish turn diameter Ø33.9 mm over length 5.0 mm (from Z=0.0 to Z=66.0).
10. Finish turn diameter Ø30.0 mm over length 61.0 mm (from Z=0.0 to Z=61.0).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø32.0 mm and length at least 279.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 217.9 mm (from Z=0.0 to Z=217.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø27.4 mm over length 56.6 mm (from Z=0.0 to Z=56.6).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 240.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 180.0 mm (from Z=0.0 to Z=180.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø22.8 mm over length 55.2 mm (from Z=0.0 to Z=55.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø73.8 mm and length at least 275.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø71.8 mm over length 43.9 mm (from Z=0.0 to Z=43.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø71.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø57.8 mm over length 71.0 mm (from Z=0.0 to Z=227.0).
10. Finish turn diameter Ø44.5 mm over length 156.0 mm (from Z=0.0 to Z=156.0).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø66.1 mm and length at least 277.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.1 mm over length 18.6 mm (from Z=0.0 to Z=18.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.1 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø60.8 mm over length 45.1 mm (from Z=0.0 to Z=254.2).
10. Finish turn diameter Ø45.5 mm over length 69.0 mm (from Z=0.0 to Z=209.1).
11. Finish turn diameter Ø41.2 mm over length 86.2 mm (from Z=0.0 to Z=140.1).
12. Finish turn diameter Ø34.9 mm over length 30.9 mm (from Z=0.0 to Z=53.9).
13. Finish turn diameter Ø30.0 mm over length 23.0 mm (from Z=0.0 to Z=23.0).
14. Break all edges (e.g., 2×45° where applicable).
15. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø64.6 mm and length at least 263.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.6 mm over length 76.5 mm (from Z=0.0 to Z=76.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.6 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø54.4 mm over length 135.5 mm (from Z=0.0 to Z=181.8).
10. Finish turn diameter Ø38.8 mm over length 46.3 mm (from Z=0.0 to Z=46.3).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø78.9 mm and length at least 187.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø76.9 mm over length 25.9 mm (from Z=0.0 to Z=25.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø76.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.6 mm over length 44.8 mm (from Z=0.0 to Z=156.8).
9. Finish turn diameter Ø44.5 mm over length 22.7 mm (from Z=0.0 to Z=112.0).
10. Finish turn diameter Ø35.1 mm over length 16.1 mm (from Z=0.0 to Z=89.3).
11. Finish turn diameter Ø30.5 mm over length 73.2 mm (from Z=0.0 to Z=73.2).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø46.8 mm and length at least 249.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø44.8 mm over length 54.6 mm (from Z=0.0 to Z=54.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø44.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 190.3 mm (from Z=0.0 to Z=190.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø60.9 mm and length at least 207.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø58.9 mm over length 45.9 mm (from Z=0.0 to Z=45.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø58.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø52.6 mm over length 9.6 mm (from Z=0.0 to Z=156.6).
10. Finish turn diameter Ø34.1 mm over length 38.9 mm (from Z=0.0 to Z=147.0).
11. Finish turn diameter Ø30.0 mm over length 108.1 mm (from Z=0.0 to Z=108.1).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø68.0 mm and length at least 317.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.0 mm over length 106.3 mm (from Z=0.0 to Z=106.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø66.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø47.4 mm over length 25.0 mm (from Z=0.0 to Z=206.4).
10. Finish turn diameter Ø31.7 mm over length 33.5 mm (from Z=0.0 to Z=181.4).
11. Finish turn diameter Ø30.0 mm over length 147.9 mm (from Z=0.0 to Z=147.9).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø43.6 mm and length at least 101.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.6 mm over length 36.2 mm (from Z=0.0 to Z=36.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 60.3 mm (from Z=0.0 to Z=60.3).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø81.8 mm and length at least 298.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.8 mm over length 27.7 mm (from Z=0.0 to Z=27.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø62.6 mm over length 72.3 mm (from Z=0.0 to Z=265.4).
10. Finish turn diameter Ø53.1 mm over length 94.5 mm (from Z=0.0 to Z=193.1).
11. Finish turn diameter Ø43.3 mm over length 48.8 mm (from Z=0.0 to Z=98.6).
12. Finish turn diameter Ø30.1 mm over length 49.8 mm (from Z=0.0 to Z=49.8).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø59.8 mm and length at least 269.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.8 mm over length 72.3 mm (from Z=0.0 to Z=72.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø48.4 mm over length 58.2 mm (from Z=0.0 to Z=192.6).
10. Finish turn diameter Ø43.7 mm over length 69.7 mm (from Z=0.0 to Z=134.4).
11. Finish turn diameter Ø35.2 mm over length 13.1 mm (from Z=0.0 to Z=64.7).
12. Finish turn diameter Ø30.0 mm over length 51.6 mm (from Z=0.0 to Z=51.6).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø69.5 mm and length at least 171.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.5 mm over length 34.5 mm (from Z=0.0 to Z=34.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø67.5 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø54.6 mm over length 46.3 mm (from Z=0.0 to Z=132.4).
9. Finish turn diameter Ø39.0 mm over length 9.7 mm (from Z=0.0 to Z=86.1).
10. Finish turn diameter Ø33.4 mm over length 30.6 mm (from Z=0.0 to Z=76.4).
11. Finish turn diameter Ø30.0 mm over length 45.8 mm (from Z=0.0 to Z=45.8).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø34.0 mm and length at least 241.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.0 mm over length 27.2 mm (from Z=0.0 to Z=27.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 209.4 mm (from Z=0.0 to Z=209.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø66.3 mm and length at least 164.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.3 mm over length 42.8 mm (from Z=0.0 to Z=42.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.3 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø50.3 mm over length 46.9 mm (from Z=0.0 to Z=116.3).
9. Finish turn diameter Ø44.5 mm over length 50.2 mm (from Z=0.0 to Z=69.4).
10. Finish turn diameter Ø30.0 mm over length 19.2 mm (from Z=0.0 to Z=19.2).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø38.4 mm and length at least 277.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.4 mm over length 42.1 mm (from Z=0.0 to Z=42.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 230.0 mm (from Z=0.0 to Z=230.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø79.6 mm and length at least 152.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.6 mm over length 20.5 mm (from Z=0.0 to Z=20.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø66.9 mm over length 45.1 mm (from Z=0.0 to Z=127.2).
9. Finish turn diameter Ø55.1 mm over length 32.3 mm (from Z=0.0 to Z=82.1).
10. Finish turn diameter Ø50.8 mm over length 49.8 mm (from Z=0.0 to Z=49.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø49.6 mm and length at least 148.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø47.6 mm over length 44.8 mm (from Z=0.0 to Z=44.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø47.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø44.3 mm over length 67.9 mm (from Z=0.0 to Z=98.7).
9. Finish turn diameter Ø31.8 mm over length 30.8 mm (from Z=0.0 to Z=30.8).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø33.9 mm and length at least 169.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø31.9 mm over length 77.6 mm (from Z=0.0 to Z=77.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø31.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 87.2 mm (from Z=0.0 to Z=87.2).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø79.4 mm and length at least 284.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.4 mm over length 52.9 mm (from Z=0.0 to Z=52.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø68.0 mm over length 144.1 mm (from Z=0.0 to Z=226.4).
10. Finish turn diameter Ø55.4 mm over length 82.3 mm (from Z=0.0 to Z=82.3).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø75.7 mm and length at least 317.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.7 mm over length 42.9 mm (from Z=0.0 to Z=42.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.7 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø68.7 mm over length 30.0 mm (from Z=0.0 to Z=269.9).
10. Finish turn diameter Ø60.7 mm over length 68.9 mm (from Z=0.0 to Z=239.9).
11. Finish turn diameter Ø55.4 mm over length 101.8 mm (from Z=0.0 to Z=171.0).
12. Finish turn diameter Ø38.0 mm over length 69.2 mm (from Z=0.0 to Z=69.2).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø57.0 mm and length at least 165.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.0 mm over length 54.2 mm (from Z=0.0 to Z=54.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø35.5 mm over length 45.6 mm (from Z=0.0 to Z=106.6).
9. Finish turn diameter Ø30.0 mm over length 61.0 mm (from Z=0.0 to Z=61.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 219.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 189.6 mm (from Z=0.0 to Z=189.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø29.7 mm over length 25.1 mm (from Z=0.0 to Z=25.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø67.0 mm and length at least 178.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.0 mm over length 27.6 mm (from Z=0.0 to Z=27.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø65.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø58.7 mm over length 43.0 mm (from Z=0.0 to Z=146.2).
9. Finish turn diameter Ø49.0 mm over length 41.9 mm (from Z=0.0 to Z=103.2).
10. Finish turn diameter Ø33.5 mm over length 61.3 mm (from Z=0.0 to Z=61.3).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø56.9 mm and length at least 159.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.9 mm over length 37.4 mm (from Z=0.0 to Z=37.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø54.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø35.4 mm over length 27.2 mm (from Z=0.0 to Z=116.8).
9. Finish turn diameter Ø30.0 mm over length 89.6 mm (from Z=0.0 to Z=89.6).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø73.5 mm and length at least 242.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø71.5 mm over length 14.6 mm (from Z=0.0 to Z=14.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø71.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø54.4 mm over length 57.0 mm (from Z=0.0 to Z=222.8).
10. Finish turn diameter Ø47.5 mm over length 38.6 mm (from Z=0.0 to Z=165.8).
11. Finish turn diameter Ø38.1 mm over length 49.8 mm (from Z=0.0 to Z=127.2).
12. Finish turn diameter Ø30.0 mm over length 77.4 mm (from Z=0.0 to Z=77.4).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø79.5 mm and length at least 263.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.5 mm over length 63.3 mm (from Z=0.0 to Z=63.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø64.7 mm over length 76.3 mm (from Z=0.0 to Z=195.1).
10. Finish turn diameter Ø53.9 mm over length 72.8 mm (from Z=0.0 to Z=118.8).
11. Finish turn diameter Ø36.0 mm over length 46.0 mm (from Z=0.0 to Z=46.0).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø55.6 mm and length at least 82.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.6 mm over length 14.7 mm (from Z=0.0 to Z=14.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø42.2 mm over length 7.0 mm (from Z=0.0 to Z=62.5).
9. Finish turn diameter Ø37.4 mm over length 12.5 mm (from Z=0.0 to Z=55.5).
10. Finish turn diameter Ø32.2 mm over length 14.2 mm (from Z=0.0 to Z=43.0).
11. Finish turn diameter Ø30.0 mm over length 28.8 mm (from Z=0.0 to Z=28.8).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø72.0 mm and length at least 102.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø70.0 mm over length 24.5 mm (from Z=0.0 to Z=24.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø70.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.5 mm over length 41.8 mm (from Z=0.0 to Z=72.6).
9. Finish turn diameter Ø56.7 mm over length 13.2 mm (from Z=0.0 to Z=30.8).
10. Finish turn diameter Ø51.5 mm over length 17.6 mm (from Z=0.0 to Z=17.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø60.3 mm and length at least 76.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø58.3 mm over length 7.5 mm (from Z=0.0 to Z=7.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø58.3 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø42.4 mm over length 5.2 mm (from Z=0.0 to Z=64.0).
9. Finish turn diameter Ø30.0 mm over length 58.8 mm (from Z=0.0 to Z=58.8).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø38.9 mm and length at least 281.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.9 mm over length 71.7 mm (from Z=0.0 to Z=71.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 205.0 mm (from Z=0.0 to Z=205.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø72.2 mm and length at least 211.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø70.2 mm over length 33.7 mm (from Z=0.0 to Z=33.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø70.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø53.7 mm over length 46.2 mm (from Z=0.0 to Z=172.4).
10. Finish turn diameter Ø46.3 mm over length 52.5 mm (from Z=0.0 to Z=126.2).
11. Finish turn diameter Ø40.7 mm over length 16.6 mm (from Z=0.0 to Z=73.7).
12. Finish turn diameter Ø30.0 mm over length 57.1 mm (from Z=0.0 to Z=57.1).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 215.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 128.4 mm (from Z=0.0 to Z=128.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø20.1 mm over length 82.0 mm (from Z=0.0 to Z=82.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø78.4 mm and length at least 174.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø76.4 mm over length 72.5 mm (from Z=0.0 to Z=72.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø76.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø66.9 mm over length 42.3 mm (from Z=0.0 to Z=97.4).
9. Finish turn diameter Ø57.4 mm over length 45.6 mm (from Z=0.0 to Z=55.1).
10. Finish turn diameter Ø53.5 mm over length 9.5 mm (from Z=0.0 to Z=9.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø63.6 mm and length at least 301.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø61.6 mm over length 51.5 mm (from Z=0.0 to Z=51.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø61.6 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø45.4 mm over length 28.6 mm (from Z=0.0 to Z=245.3).
10. Finish turn diameter Ø38.7 mm over length 17.1 mm (from Z=0.0 to Z=216.7).
11. Finish turn diameter Ø30.0 mm over length 199.6 mm (from Z=0.0 to Z=199.6).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø32.0 mm and length at least 223.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 167.9 mm (from Z=0.0 to Z=167.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø24.7 mm over length 50.5 mm (from Z=0.0 to Z=50.5).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø43.9 mm and length at least 280.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.9 mm over length 19.7 mm (from Z=0.0 to Z=19.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 256.2 mm (from Z=0.0 to Z=256.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø65.9 mm and length at least 301.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.9 mm over length 55.1 mm (from Z=0.0 to Z=55.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø54.4 mm over length 74.0 mm (from Z=0.0 to Z=241.0).
10. Finish turn diameter Ø39.0 mm over length 30.6 mm (from Z=0.0 to Z=167.0).
11. Finish turn diameter Ø30.0 mm over length 136.4 mm (from Z=0.0 to Z=136.4).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø75.7 mm and length at least 135.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.7 mm over length 31.2 mm (from Z=0.0 to Z=31.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.7 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø58.4 mm over length 10.0 mm (from Z=0.0 to Z=99.0).
9. Finish turn diameter Ø40.3 mm over length 37.4 mm (from Z=0.0 to Z=89.0).
10. Finish turn diameter Ø30.0 mm over length 51.6 mm (from Z=0.0 to Z=51.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø81.8 mm and length at least 167.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.8 mm over length 68.0 mm (from Z=0.0 to Z=68.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø64.7 mm over length 47.5 mm (from Z=0.0 to Z=94.3).
9. Finish turn diameter Ø47.2 mm over length 46.8 mm (from Z=0.0 to Z=46.8).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 210.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 99.2 mm (from Z=0.0 to Z=99.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø29.7 mm over length 106.7 mm (from Z=0.0 to Z=106.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø50.8 mm and length at least 227.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø48.8 mm over length 16.2 mm (from Z=0.0 to Z=16.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø48.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø37.7 mm over length 56.2 mm (from Z=0.0 to Z=206.7).
10. Finish turn diameter Ø30.0 mm over length 150.5 mm (from Z=0.0 to Z=150.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø35.5 mm and length at least 108.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.5 mm over length 32.6 mm (from Z=0.0 to Z=32.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø33.5 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 70.6 mm (from Z=0.0 to Z=70.6).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø78.6 mm and length at least 153.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø76.6 mm over length 57.3 mm (from Z=0.0 to Z=57.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø76.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø59.9 mm over length 45.1 mm (from Z=0.0 to Z=91.4).
9. Finish turn diameter Ø54.2 mm over length 46.3 mm (from Z=0.0 to Z=46.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø80.2 mm and length at least 94.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.2 mm over length 27.0 mm (from Z=0.0 to Z=27.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.2 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø72.6 mm over length 28.1 mm (from Z=0.0 to Z=62.1).
9. Finish turn diameter Ø54.9 mm over length 14.2 mm (from Z=0.0 to Z=34.0).
10. Finish turn diameter Ø49.8 mm over length 19.8 mm (from Z=0.0 to Z=19.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø55.9 mm and length at least 108.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.9 mm over length 8.0 mm (from Z=0.0 to Z=8.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø43.6 mm over length 35.7 mm (from Z=0.0 to Z=95.1).
9. Finish turn diameter Ø30.0 mm over length 59.4 mm (from Z=0.0 to Z=59.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø71.5 mm and length at least 275.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø69.5 mm over length 66.7 mm (from Z=0.0 to Z=66.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø69.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø65.2 mm over length 54.2 mm (from Z=0.0 to Z=203.6).
10. Finish turn diameter Ø49.4 mm over length 73.9 mm (from Z=0.0 to Z=149.4).
11. Finish turn diameter Ø36.3 mm over length 38.9 mm (from Z=0.0 to Z=75.5).
12. Finish turn diameter Ø30.0 mm over length 36.6 mm (from Z=0.0 to Z=36.6).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø74.4 mm and length at least 190.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.4 mm over length 80.7 mm (from Z=0.0 to Z=80.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.5 mm over length 53.9 mm (from Z=0.0 to Z=105.0).
9. Finish turn diameter Ø54.4 mm over length 51.1 mm (from Z=0.0 to Z=51.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 324.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 230.0 mm (from Z=0.0 to Z=230.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø18.3 mm over length 89.2 mm (from Z=0.0 to Z=89.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø66.4 mm and length at least 107.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.4 mm over length 50.7 mm (from Z=0.0 to Z=50.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø60.9 mm over length 5.0 mm (from Z=0.0 to Z=52.2).
9. Finish turn diameter Ø41.6 mm over length 47.2 mm (from Z=0.0 to Z=47.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø65.7 mm and length at least 115.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.7 mm over length 16.2 mm (from Z=0.0 to Z=16.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.7 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø55.5 mm over length 13.3 mm (from Z=0.0 to Z=94.7).
9. Finish turn diameter Ø50.9 mm over length 15.1 mm (from Z=0.0 to Z=81.4).
10. Finish turn diameter Ø43.7 mm over length 29.7 mm (from Z=0.0 to Z=66.3).
11. Finish turn diameter Ø30.0 mm over length 36.6 mm (from Z=0.0 to Z=36.6).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø38.4 mm and length at least 215.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.4 mm over length 60.0 mm (from Z=0.0 to Z=60.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø31.8 mm over length 65.4 mm (from Z=0.0 to Z=150.1).
10. Finish turn diameter Ø30.0 mm over length 84.7 mm (from Z=0.0 to Z=84.7).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø65.4 mm and length at least 323.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.4 mm over length 91.3 mm (from Z=0.0 to Z=91.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø57.5 mm over length 64.1 mm (from Z=0.0 to Z=227.1).
10. Finish turn diameter Ø52.5 mm over length 51.4 mm (from Z=0.0 to Z=163.0).
11. Finish turn diameter Ø43.9 mm over length 45.9 mm (from Z=0.0 to Z=111.6).
12. Finish turn diameter Ø35.7 mm over length 65.7 mm (from Z=0.0 to Z=65.7).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø43.7 mm and length at least 263.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.7 mm over length 50.9 mm (from Z=0.0 to Z=50.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.7 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø34.3 mm over length 46.7 mm (from Z=0.0 to Z=207.3).
10. Finish turn diameter Ø30.0 mm over length 160.6 mm (from Z=0.0 to Z=160.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø32.0 mm and length at least 221.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 173.2 mm (from Z=0.0 to Z=173.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø18.4 mm over length 43.4 mm (from Z=0.0 to Z=43.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø47.8 mm and length at least 208.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø45.8 mm over length 11.5 mm (from Z=0.0 to Z=11.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø45.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 192.0 mm (from Z=0.0 to Z=192.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


[User] Generate the machining process for the shaft in the image. Use the exact 10–11 step template.

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø53.2 mm and length at least 117.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.2 mm over length 23.7 mm (from Z=0.0 to Z=23.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.2 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø35.2 mm over length 26.0 mm (from Z=0.0 to Z=88.9).
9. Finish turn diameter Ø30.9 mm over length 21.3 mm (from Z=0.0 to Z=62.9).
10. Finish turn diameter Ø30.0 mm over length 41.6 mm (from Z=0.0 to Z=41.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.