[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 Ø49.8 mm and length at least 174.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø47.8 mm over length 40.4 mm (from Z=0.0 to Z=40.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø47.8 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 Ø42.4 mm over length 11.8 mm (from Z=0.0 to Z=128.8).
10. Finish turn diameter Ø30.0 mm over length 117.0 mm (from Z=0.0 to Z=117.0).
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 16MnCr5) with diameter at least Ø36.6 mm and length at least 275.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.6 mm over length 39.0 mm (from Z=0.0 to Z=39.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø34.6 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 Ø30.0 mm over length 231.6 mm (from Z=0.0 to Z=231.6).
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 143.7 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 77.8 mm (from Z=0.0 to Z=77.8).
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 Ø22.9 mm over length 60.9 mm (from Z=0.0 to Z=60.9).
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 stainless steel round bar (material 1.4301) with diameter at least Ø52.2 mm and length at least 255.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø50.2 mm over length 136.4 mm (from Z=0.0 to Z=136.4).
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 Ø39.9 mm over length 19.8 mm (from Z=0.0 to Z=114.2).
10. Finish turn diameter Ø32.9 mm over length 45.9 mm (from Z=0.0 to Z=94.4).
11. Finish turn diameter Ø30.0 mm over length 48.5 mm (from Z=0.0 to Z=48.5).
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 Ø54.1 mm and length at least 308.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø52.1 mm over length 46.0 mm (from Z=0.0 to Z=46.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø52.1 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 Ø35.9 mm over length 53.9 mm (from Z=0.0 to Z=257.1).
10. Finish turn diameter Ø30.0 mm over length 203.2 mm (from Z=0.0 to Z=203.2).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø43.8 mm and length at least 192.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.8 mm over length 68.8 mm (from Z=0.0 to Z=68.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.8 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 118.4 mm (from Z=0.0 to Z=118.4).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 163.4 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 99.8 mm (from Z=0.0 to Z=99.8).
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 Ø21.3 mm over length 58.6 mm (from Z=0.0 to Z=58.6).
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 Ø70.1 mm and length at least 209.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.1 mm over length 47.4 mm (from Z=0.0 to Z=47.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø68.1 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 Ø59.6 mm over length 111.6 mm (from Z=0.0 to Z=156.7).
10. Finish turn diameter Ø52.5 mm over length 45.1 mm (from Z=0.0 to Z=45.1).
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 16MnCr5) with diameter at least Ø78.3 mm and length at least 193.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø76.3 mm over length 19.4 mm (from Z=0.0 to Z=19.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø76.3 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 Ø63.6 mm over length 102.8 mm (from Z=0.0 to Z=169.0).
9. Finish turn diameter Ø58.6 mm over length 66.2 mm (from Z=0.0 to Z=66.2).
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 42CrMo4) with diameter at least Ø57.9 mm and length at least 322.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.9 mm over length 114.6 mm (from Z=0.0 to Z=114.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.9 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 Ø41.6 mm over length 11.1 mm (from Z=0.0 to Z=203.0).
10. Finish turn diameter Ø36.0 mm over length 68.3 mm (from Z=0.0 to Z=191.9).
11. Finish turn diameter Ø30.0 mm over length 123.6 mm (from Z=0.0 to Z=123.6).
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 16MnCr5) with diameter at least Ø73.0 mm and length at least 315.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø71.0 mm over length 61.9 mm (from Z=0.0 to Z=61.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø71.0 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 Ø60.7 mm over length 91.3 mm (from Z=0.0 to Z=248.7).
10. Finish turn diameter Ø48.5 mm over length 72.0 mm (from Z=0.0 to Z=157.4).
11. Finish turn diameter Ø30.0 mm over length 85.4 mm (from Z=0.0 to Z=85.4).
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 stainless steel round bar (material 1.4301) with diameter at least Ø36.8 mm and length at least 242.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.8 mm over length 45.8 mm (from Z=0.0 to Z=45.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø34.8 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 Ø31.5 mm over length 110.3 mm (from Z=0.0 to Z=191.9).
10. Finish turn diameter Ø30.0 mm over length 81.6 mm (from Z=0.0 to Z=81.6).
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 167.5 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 120.5 mm (from Z=0.0 to Z=120.5).
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 Ø21.7 mm over length 42.0 mm (from Z=0.0 to Z=42.0).
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 Ø68.9 mm and length at least 275.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.9 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 Ø66.9 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 Ø57.9 mm over length 18.6 mm (from Z=0.0 to Z=141.7).
10. Finish turn diameter Ø41.0 mm over length 90.1 mm (from Z=0.0 to Z=123.1).
11. Finish turn diameter Ø30.0 mm over length 33.0 mm (from Z=0.0 to Z=33.0).
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 16MnCr5) with diameter at least Ø55.4 mm and length at least 316.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.4 mm over length 48.1 mm (from Z=0.0 to Z=48.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.4 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 Ø36.5 mm over length 17.3 mm (from Z=0.0 to Z=263.2).
10. Finish turn diameter Ø33.4 mm over length 41.8 mm (from Z=0.0 to Z=245.9).
11. Finish turn diameter Ø30.0 mm over length 204.1 mm (from Z=0.0 to Z=204.1).
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 Ø35.4 mm and length at least 196.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.4 mm over length 66.9 mm (from Z=0.0 to Z=66.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø33.4 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 125.0 mm (from Z=0.0 to Z=125.0).
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 138.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 116.2 mm (from Z=0.0 to Z=116.2).
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 Ø26.0 mm over length 17.1 mm (from Z=0.0 to Z=17.1).
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 104.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 89.1 mm (from Z=0.0 to Z=89.1).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø27.2 mm over length 10.2 mm (from Z=0.0 to Z=10.2).
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 145.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø43.0 mm over length 41.1 mm (from Z=0.0 to Z=41.1).
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. 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 57.9 mm (from Z=0.0 to Z=99.7).
9. Finish turn diameter Ø30.0 mm over length 41.8 mm (from Z=0.0 to Z=41.8).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø43.9 mm and length at least 181.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.9 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 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 152.9 mm (from Z=0.0 to Z=152.9).
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 steel round bar (material C45) with diameter at least Ø72.9 mm and length at least 77.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø70.9 mm over length 37.8 mm (from Z=0.0 to Z=37.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø70.9 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 Ø60.6 mm over length 12.6 mm (from Z=0.0 to Z=34.2).
9. Finish turn diameter Ø55.7 mm over length 21.6 mm (from Z=0.0 to Z=21.6).
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 42CrMo4) with diameter at least Ø60.2 mm and length at least 279.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø58.2 mm over length 62.1 mm (from Z=0.0 to Z=62.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø58.2 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 Ø49.3 mm over length 48.3 mm (from Z=0.0 to Z=212.0).
10. Finish turn diameter Ø40.3 mm over length 60.8 mm (from Z=0.0 to Z=163.7).
11. Finish turn diameter Ø30.0 mm over length 102.9 mm (from Z=0.0 to Z=102.9).
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 Ø42.2 mm and length at least 98.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.2 mm over length 12.2 mm (from Z=0.0 to Z=12.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø40.2 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 Ø30.0 mm over length 80.8 mm (from Z=0.0 to Z=80.8).
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 Ø52.1 mm and length at least 279.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø50.1 mm over length 30.7 mm (from Z=0.0 to Z=30.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø50.1 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 Ø34.0 mm over length 48.9 mm (from Z=0.0 to Z=243.9).
10. Finish turn diameter Ø30.0 mm over length 195.0 mm (from Z=0.0 to Z=195.0).
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 Ø66.0 mm and length at least 273.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.0 mm over length 108.7 mm (from Z=0.0 to Z=108.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.0 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 Ø57.9 mm over length 34.9 mm (from Z=0.0 to Z=159.3).
10. Finish turn diameter Ø51.1 mm over length 30.4 mm (from Z=0.0 to Z=124.4).
11. Finish turn diameter Ø45.6 mm over length 71.6 mm (from Z=0.0 to Z=94.0).
12. Finish turn diameter Ø37.1 mm over length 22.4 mm (from Z=0.0 to Z=22.4).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø59.0 mm and length at least 84.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.0 mm over length 12.1 mm (from Z=0.0 to Z=12.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.0 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 Ø40.5 mm over length 5.0 mm (from Z=0.0 to Z=67.1).
9. Finish turn diameter Ø34.7 mm over length 21.4 mm (from Z=0.0 to Z=62.1).
10. Finish turn diameter Ø30.0 mm over length 40.7 mm (from Z=0.0 to Z=40.7).
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 Ø57.9 mm and length at least 277.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.9 mm over length 87.2 mm (from Z=0.0 to Z=87.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.9 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 Ø47.8 mm over length 94.1 mm (from Z=0.0 to Z=185.5).
10. Finish turn diameter Ø36.8 mm over length 91.4 mm (from Z=0.0 to Z=91.4).
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 Ø75.7 mm and length at least 298.2 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 33.5 mm (from Z=0.0 to Z=33.5).
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 Ø66.5 mm over length 70.7 mm (from Z=0.0 to Z=259.7).
10. Finish turn diameter Ø61.2 mm over length 114.0 mm (from Z=0.0 to Z=189.0).
11. Finish turn diameter Ø47.3 mm over length 75.0 mm (from Z=0.0 to Z=75.0).
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 Ø75.5 mm and length at least 284.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.5 mm over length 55.4 mm (from Z=0.0 to Z=55.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.5 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 Ø62.9 mm over length 62.6 mm (from Z=0.0 to Z=224.2).
10. Finish turn diameter Ø53.8 mm over length 69.6 mm (from Z=0.0 to Z=161.6).
11. Finish turn diameter Ø44.0 mm over length 92.0 mm (from Z=0.0 to Z=92.0).
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 42CrMo4) with diameter at least Ø34.2 mm and length at least 111.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.2 mm over length 9.0 mm (from Z=0.0 to Z=9.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.2 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 97.6 mm (from Z=0.0 to Z=97.6).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø68.7 mm and length at least 315.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.7 mm over length 88.7 mm (from Z=0.0 to Z=88.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø66.7 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 Ø61.6 mm over length 41.3 mm (from Z=0.0 to Z=221.6).
10. Finish turn diameter Ø58.1 mm over length 87.7 mm (from Z=0.0 to Z=180.3).
11. Finish turn diameter Ø39.5 mm over length 92.6 mm (from Z=0.0 to Z=92.6).
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 16MnCr5) with diameter at least Ø77.5 mm and length at least 96.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø75.5 mm over length 13.5 mm (from Z=0.0 to Z=13.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø75.5 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 Ø64.3 mm over length 18.8 mm (from Z=0.0 to Z=77.5).
9. Finish turn diameter Ø46.6 mm over length 11.9 mm (from Z=0.0 to Z=58.7).
10. Finish turn diameter Ø40.4 mm over length 13.9 mm (from Z=0.0 to Z=46.8).
11. Finish turn diameter Ø37.3 mm over length 19.5 mm (from Z=0.0 to Z=32.9).
12. Finish turn diameter Ø30.0 mm over length 13.4 mm (from Z=0.0 to Z=13.4).
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 Ø43.1 mm and length at least 256.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.1 mm over length 44.9 mm (from Z=0.0 to Z=44.9).
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 Ø34.6 mm over length 58.2 mm (from Z=0.0 to Z=206.6).
10. Finish turn diameter Ø30.0 mm over length 148.4 mm (from Z=0.0 to Z=148.4).
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 Ø59.6 mm and length at least 163.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.6 mm over length 44.9 mm (from Z=0.0 to Z=44.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.6 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 Ø42.9 mm over length 70.2 mm (from Z=0.0 to Z=114.0).
9. Finish turn diameter Ø31.5 mm over length 43.8 mm (from Z=0.0 to Z=43.8).
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 Ø79.7 mm and length at least 170.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.7 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 Ø77.7 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 Ø74.7 mm over length 15.0 mm (from Z=0.0 to Z=140.0).
9. Finish turn diameter Ø70.5 mm over length 47.1 mm (from Z=0.0 to Z=125.0).
10. Finish turn diameter Ø55.5 mm over length 33.8 mm (from Z=0.0 to Z=77.9).
11. Finish turn diameter Ø50.1 mm over length 44.1 mm (from Z=0.0 to Z=44.1).
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 C45) with diameter at least Ø50.0 mm and length at least 262.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø48.0 mm over length 60.7 mm (from Z=0.0 to Z=60.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø48.0 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 Ø42.2 mm over length 34.7 mm (from Z=0.0 to Z=197.2).
10. Finish turn diameter Ø34.7 mm over length 90.1 mm (from Z=0.0 to Z=162.5).
11. Finish turn diameter Ø30.0 mm over length 72.4 mm (from Z=0.0 to Z=72.4).
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 stainless steel round bar (material 1.4301) with diameter at least Ø57.6 mm and length at least 98.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.6 mm over length 16.9 mm (from Z=0.0 to Z=16.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.6 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 Ø52.1 mm over length 21.8 mm (from Z=0.0 to Z=76.1).
9. Finish turn diameter Ø44.1 mm over length 17.6 mm (from Z=0.0 to Z=54.3).
10. Finish turn diameter Ø30.0 mm over length 36.7 mm (from Z=0.0 to Z=36.7).
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 C45) with diameter at least Ø77.6 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 Ø75.6 mm over length 77.7 mm (from Z=0.0 to Z=77.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø75.6 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 Ø71.4 mm over length 95.7 mm (from Z=0.0 to Z=216.1).
10. Finish turn diameter Ø56.3 mm over length 91.3 mm (from Z=0.0 to Z=120.4).
11. Finish turn diameter Ø50.1 mm over length 29.1 mm (from Z=0.0 to Z=29.1).
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 stainless steel round bar (material 1.4301) with diameter at least Ø67.7 mm and length at least 88.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.7 mm over length 33.3 mm (from Z=0.0 to Z=33.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø65.7 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 Ø51.3 mm over length 9.4 mm (from Z=0.0 to Z=50.5).
9. Finish turn diameter Ø43.9 mm over length 13.3 mm (from Z=0.0 to Z=41.1).
10. Finish turn diameter Ø39.7 mm over length 19.2 mm (from Z=0.0 to Z=27.8).
11. Finish turn diameter Ø30.0 mm over length 8.6 mm (from Z=0.0 to Z=8.6).
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 16MnCr5) with diameter at least Ø32.0 mm and length at least 177.6 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 159.2 mm (from Z=0.0 to Z=159.2).
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 Ø28.4 mm over length 13.4 mm (from Z=0.0 to Z=13.4).
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 Ø46.6 mm and length at least 319.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø44.6 mm over length 112.2 mm (from Z=0.0 to Z=112.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø44.6 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 Ø30.0 mm over length 202.5 mm (from Z=0.0 to Z=202.5).
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 Ø41.6 mm and length at least 95.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø39.6 mm over length 30.0 mm (from Z=0.0 to Z=30.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø39.6 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 60.4 mm (from Z=0.0 to Z=60.4).
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 C45) with diameter at least Ø51.0 mm and length at least 322.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.0 mm over length 69.5 mm (from Z=0.0 to Z=69.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.0 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 Ø45.4 mm over length 69.5 mm (from Z=0.0 to Z=247.8).
10. Finish turn diameter Ø30.0 mm over length 178.3 mm (from Z=0.0 to Z=178.3).
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 Ø58.0 mm and length at least 217.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.0 mm over length 82.1 mm (from Z=0.0 to Z=82.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.0 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 Ø43.8 mm over length 35.9 mm (from Z=0.0 to Z=129.9).
10. Finish turn diameter Ø33.9 mm over length 60.3 mm (from Z=0.0 to Z=94.0).
11. Finish turn diameter Ø30.0 mm over length 33.7 mm (from Z=0.0 to Z=33.7).
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 stainless steel round bar (material 1.4301) with diameter at least Ø57.7 mm and length at least 253.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.7 mm over length 22.1 mm (from Z=0.0 to Z=22.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.7 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 Ø50.0 mm over length 29.3 mm (from Z=0.0 to Z=226.3).
10. Finish turn diameter Ø40.8 mm over length 36.7 mm (from Z=0.0 to Z=197.0).
11. Finish turn diameter Ø36.4 mm over length 59.1 mm (from Z=0.0 to Z=160.3).
12. Finish turn diameter Ø30.0 mm over length 101.2 mm (from Z=0.0 to Z=101.2).
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 Ø32.0 mm and length at least 133.9 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 100.0 mm (from Z=0.0 to Z=100.0).
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 Ø22.7 mm over length 28.9 mm (from Z=0.0 to Z=28.9).
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 Ø38.7 mm and length at least 302.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.7 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 Ø36.7 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 Ø30.0 mm over length 226.4 mm (from Z=0.0 to Z=226.4).
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 Ø38.3 mm and length at least 123.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.3 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 Ø36.3 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 91.2 mm (from Z=0.0 to Z=91.2).
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 Ø65.5 mm and length at least 271.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.5 mm over length 38.3 mm (from Z=0.0 to Z=38.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.5 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 Ø47.7 mm over length 76.3 mm (from Z=0.0 to Z=227.9).
10. Finish turn diameter Ø40.2 mm over length 132.8 mm (from Z=0.0 to Z=151.6).
11. Finish turn diameter Ø37.0 mm over length 18.8 mm (from Z=0.0 to Z=18.8).
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 Ø76.5 mm and length at least 241.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø74.5 mm over length 19.1 mm (from Z=0.0 to Z=19.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø74.5 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 Ø64.8 mm over length 59.1 mm (from Z=0.0 to Z=217.6).
10. Finish turn diameter Ø45.5 mm over length 24.5 mm (from Z=0.0 to Z=158.5).
11. Finish turn diameter Ø30.0 mm over length 134.0 mm (from Z=0.0 to Z=134.0).
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 stainless steel round bar (material 1.4301) with diameter at least Ø37.0 mm and length at least 203.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø35.0 mm over length 46.1 mm (from Z=0.0 to Z=46.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø35.0 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 152.1 mm (from Z=0.0 to Z=152.1).
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 Ø42.2 mm and length at least 151.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.2 mm over length 34.7 mm (from Z=0.0 to Z=34.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø40.2 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 111.8 mm (from Z=0.0 to Z=111.8).
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 Ø61.2 mm and length at least 201.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.2 mm over length 67.2 mm (from Z=0.0 to Z=67.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.2 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 Ø40.7 mm over length 93.7 mm (from Z=0.0 to Z=129.2).
10. Finish turn diameter Ø31.1 mm over length 35.5 mm (from Z=0.0 to Z=35.5).
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 Ø32.0 mm and length at least 149.4 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 79.9 mm (from Z=0.0 to Z=79.9).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø25.8 mm over length 64.5 mm (from Z=0.0 to Z=64.5).
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 Ø32.0 mm and length at least 68.4 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 45.3 mm (from Z=0.0 to Z=45.3).
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 Ø18.6 mm over length 18.1 mm (from Z=0.0 to Z=18.1).
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 steel round bar (material C45) with diameter at least Ø32.0 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 Ø30.0 mm over length 141.6 mm (from Z=0.0 to Z=141.6).
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 Ø23.8 mm over length 95.8 mm (from Z=0.0 to Z=95.8).
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 C45) with diameter at least Ø79.3 mm and length at least 275.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.3 mm over length 74.5 mm (from Z=0.0 to Z=74.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.3 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 Ø65.2 mm over length 41.2 mm (from Z=0.0 to Z=195.9).
10. Finish turn diameter Ø51.6 mm over length 86.3 mm (from Z=0.0 to Z=154.7).
11. Finish turn diameter Ø42.0 mm over length 68.4 mm (from Z=0.0 to Z=68.4).
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 16MnCr5) with diameter at least Ø33.7 mm and length at least 127.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø31.7 mm over length 35.6 mm (from Z=0.0 to Z=35.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø31.7 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 86.6 mm (from Z=0.0 to Z=86.6).
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 steel round bar (material 16MnCr5) with diameter at least Ø53.6 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 Ø51.6 mm over length 56.0 mm (from Z=0.0 to Z=56.0).
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. 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 22.3 mm (from Z=0.0 to Z=92.7).
9. Finish turn diameter Ø31.6 mm over length 14.5 mm (from Z=0.0 to Z=70.4).
10. Finish turn diameter Ø30.0 mm over length 55.9 mm (from Z=0.0 to Z=55.9).
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 Ø64.0 mm and length at least 322.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.0 mm over length 36.7 mm (from Z=0.0 to Z=36.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.0 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 Ø52.9 mm over length 26.1 mm (from Z=0.0 to Z=281.0).
10. Finish turn diameter Ø44.6 mm over length 25.9 mm (from Z=0.0 to Z=254.9).
11. Finish turn diameter Ø32.8 mm over length 107.9 mm (from Z=0.0 to Z=229.0).
12. Finish turn diameter Ø30.0 mm over length 121.1 mm (from Z=0.0 to Z=121.1).
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 C45) with diameter at least Ø43.9 mm and length at least 228.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.9 mm over length 53.9 mm (from Z=0.0 to Z=53.9).
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 169.4 mm (from Z=0.0 to Z=169.4).
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 Ø58.1 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 Ø56.1 mm over length 61.1 mm (from Z=0.0 to Z=61.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.1 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 Ø51.3 mm over length 14.3 mm (from Z=0.0 to Z=103.7).
9. Finish turn diameter Ø39.1 mm over length 43.2 mm (from Z=0.0 to Z=89.4).
10. Finish turn diameter Ø32.7 mm over length 46.2 mm (from Z=0.0 to Z=46.2).
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 C45) with diameter at least Ø74.8 mm and length at least 257.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.8 mm over length 35.5 mm (from Z=0.0 to Z=35.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.8 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 Ø66.3 mm over length 75.0 mm (from Z=0.0 to Z=216.8).
10. Finish turn diameter Ø47.7 mm over length 57.3 mm (from Z=0.0 to Z=141.8).
11. Finish turn diameter Ø32.2 mm over length 84.5 mm (from Z=0.0 to Z=84.5).
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 Ø61.0 mm and length at least 261.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.0 mm over length 73.4 mm (from Z=0.0 to Z=73.4).
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. 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 Ø51.0 mm over length 85.5 mm (from Z=0.0 to Z=182.7).
10. Finish turn diameter Ø46.0 mm over length 80.1 mm (from Z=0.0 to Z=97.2).
11. Finish turn diameter Ø41.4 mm over length 17.1 mm (from Z=0.0 to Z=17.1).
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 stainless steel round bar (material 1.4301) with diameter at least Ø55.0 mm and length at least 243.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.0 mm over length 39.4 mm (from Z=0.0 to Z=39.4).
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. 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 Ø35.0 mm over length 62.5 mm (from Z=0.0 to Z=199.4).
10. Finish turn diameter Ø30.0 mm over length 136.9 mm (from Z=0.0 to Z=136.9).
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 Ø32.0 mm and length at least 153.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 115.9 mm (from Z=0.0 to Z=115.9).
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 Ø29.0 mm over length 32.9 mm (from Z=0.0 to Z=32.9).
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 steel round bar (material 42CrMo4) with diameter at least Ø69.3 mm and length at least 249.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.3 mm over length 52.3 mm (from Z=0.0 to Z=52.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø67.3 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 Ø57.9 mm over length 15.6 mm (from Z=0.0 to Z=191.8).
10. Finish turn diameter Ø41.9 mm over length 55.4 mm (from Z=0.0 to Z=176.2).
11. Finish turn diameter Ø34.8 mm over length 16.8 mm (from Z=0.0 to Z=120.8).
12. Finish turn diameter Ø30.1 mm over length 31.5 mm (from Z=0.0 to Z=104.0).
13. Finish turn diameter Ø30.0 mm over length 72.5 mm (from Z=0.0 to Z=72.5).
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 Ø75.1 mm and length at least 292.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.1 mm over length 118.0 mm (from Z=0.0 to Z=118.0).
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 56.3 mm (from Z=0.0 to Z=169.7).
10. Finish turn diameter Ø66.9 mm over length 81.7 mm (from Z=0.0 to Z=113.4).
11. Finish turn diameter Ø54.0 mm over length 31.7 mm (from Z=0.0 to Z=31.7).
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 Ø54.7 mm and length at least 246.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø52.7 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 Ø52.7 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 Ø43.7 mm over length 37.7 mm (from Z=0.0 to Z=225.7).
10. Finish turn diameter Ø30.0 mm over length 188.0 mm (from Z=0.0 to Z=188.0).
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 Ø44.1 mm and length at least 269.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.1 mm over length 105.3 mm (from Z=0.0 to Z=105.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø42.1 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 159.2 mm (from Z=0.0 to Z=159.2).
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 Ø66.7 mm and length at least 66.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.7 mm over length 12.3 mm (from Z=0.0 to Z=12.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.7 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 Ø57.6 mm over length 8.8 mm (from Z=0.0 to Z=48.8).
9. Finish turn diameter Ø39.8 mm over length 15.3 mm (from Z=0.0 to Z=40.0).
10. Finish turn diameter Ø34.4 mm over length 7.4 mm (from Z=0.0 to Z=24.7).
11. Finish turn diameter Ø30.0 mm over length 17.3 mm (from Z=0.0 to Z=17.3).
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 Ø37.4 mm and length at least 130.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø35.4 mm over length 22.4 mm (from Z=0.0 to Z=22.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø35.4 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 102.7 mm (from Z=0.0 to Z=102.7).
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 C45) with diameter at least Ø65.9 mm and length at least 122.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.9 mm over length 45.6 mm (from Z=0.0 to Z=45.6).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø51.4 mm over length 55.5 mm (from Z=0.0 to Z=72.3).
9. Finish turn diameter Ø32.7 mm over length 16.8 mm (from Z=0.0 to Z=16.8).
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 Ø68.5 mm and length at least 152.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.5 mm over length 25.6 mm (from Z=0.0 to Z=25.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø66.5 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 Ø46.8 mm over length 39.9 mm (from Z=0.0 to Z=121.7).
9. Finish turn diameter Ø38.2 mm over length 8.2 mm (from Z=0.0 to Z=81.8).
10. Finish turn diameter Ø30.0 mm over length 73.6 mm (from Z=0.0 to Z=73.6).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø59.2 mm and length at least 88.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.2 mm over length 10.9 mm (from Z=0.0 to Z=10.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.2 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 Ø46.7 mm over length 28.2 mm (from Z=0.0 to Z=72.8).
9. Finish turn diameter Ø37.0 mm over length 44.6 mm (from Z=0.0 to Z=44.6).
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 Ø44.4 mm and length at least 85.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.4 mm over length 41.5 mm (from Z=0.0 to Z=41.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø42.4 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 Ø38.8 mm over length 27.8 mm (from Z=0.0 to Z=38.9).
9. Finish turn diameter Ø30.0 mm over length 11.1 mm (from Z=0.0 to Z=11.1).
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 16MnCr5) with diameter at least Ø80.9 mm and length at least 216.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.9 mm over length 44.1 mm (from Z=0.0 to Z=44.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.9 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 Ø64.7 mm over length 39.4 mm (from Z=0.0 to Z=167.3).
10. Finish turn diameter Ø44.8 mm over length 16.1 mm (from Z=0.0 to Z=127.9).
11. Finish turn diameter Ø30.0 mm over length 111.8 mm (from Z=0.0 to Z=111.8).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 185.5 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 134.9 mm (from Z=0.0 to Z=134.9).
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 Ø28.9 mm over length 45.6 mm (from Z=0.0 to Z=45.6).
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 42CrMo4) with diameter at least Ø44.4 mm and length at least 91.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.4 mm over length 5.2 mm (from Z=0.0 to Z=5.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø42.4 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 Ø30.3 mm over length 15.8 mm (from Z=0.0 to Z=81.3).
9. Finish turn diameter Ø30.0 mm over length 65.5 mm (from Z=0.0 to Z=65.5).
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 Ø75.7 mm and length at least 77.2 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 10.4 mm (from Z=0.0 to Z=10.4).
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 Ø56.5 mm over length 19.6 mm (from Z=0.0 to Z=61.8).
9. Finish turn diameter Ø47.4 mm over length 26.1 mm (from Z=0.0 to Z=42.2).
10. Finish turn diameter Ø30.0 mm over length 16.1 mm (from Z=0.0 to Z=16.1).
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 16MnCr5) with diameter at least Ø66.0 mm and length at least 255.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.0 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 Ø64.0 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 Ø58.5 mm over length 67.3 mm (from Z=0.0 to Z=204.8).
10. Finish turn diameter Ø39.2 mm over length 86.2 mm (from Z=0.0 to Z=137.5).
11. Finish turn diameter Ø30.0 mm over length 51.3 mm (from Z=0.0 to Z=51.3).
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 Ø65.2 mm and length at least 200.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.2 mm over length 38.7 mm (from Z=0.0 to Z=38.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.2 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 Ø55.4 mm over length 33.3 mm (from Z=0.0 to Z=156.6).
10. Finish turn diameter Ø40.7 mm over length 47.6 mm (from Z=0.0 to Z=123.3).
11. Finish turn diameter Ø30.0 mm over length 75.7 mm (from Z=0.0 to Z=75.7).
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 stainless steel round bar (material 1.4301) with diameter at least Ø50.7 mm and length at least 159.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø48.7 mm over length 53.3 mm (from Z=0.0 to Z=53.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø48.7 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 Ø31.3 mm over length 55.4 mm (from Z=0.0 to Z=100.7).
9. Finish turn diameter Ø30.0 mm over length 45.3 mm (from Z=0.0 to Z=45.3).
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 stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 279.0 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 221.4 mm (from Z=0.0 to Z=221.4).
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 Ø24.0 mm over length 52.6 mm (from Z=0.0 to Z=52.6).
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 Ø57.4 mm and length at least 74.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø55.4 mm over length 5.9 mm (from Z=0.0 to Z=5.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø55.4 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 Ø52.3 mm over length 6.4 mm (from Z=0.0 to Z=63.2).
9. Finish turn diameter Ø44.0 mm over length 5.7 mm (from Z=0.0 to Z=56.8).
10. Finish turn diameter Ø40.1 mm over length 18.5 mm (from Z=0.0 to Z=51.1).
11. Finish turn diameter Ø30.6 mm over length 20.1 mm (from Z=0.0 to Z=32.6).
12. Finish turn diameter Ø30.0 mm over length 12.5 mm (from Z=0.0 to Z=12.5).
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 Ø59.2 mm and length at least 138.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.2 mm over length 30.9 mm (from Z=0.0 to Z=30.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.2 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 Ø39.8 mm over length 29.1 mm (from Z=0.0 to Z=102.6).
9. Finish turn diameter Ø30.6 mm over length 25.0 mm (from Z=0.0 to Z=73.5).
10. Finish turn diameter Ø30.0 mm over length 48.5 mm (from Z=0.0 to Z=48.5).
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 C45) with diameter at least Ø50.6 mm and length at least 97.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø48.6 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 Ø48.6 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 Ø37.6 mm over length 31.3 mm (from Z=0.0 to Z=76.2).
9. Finish turn diameter Ø34.3 mm over length 6.4 mm (from Z=0.0 to Z=44.9).
10. Finish turn diameter Ø30.0 mm over length 38.5 mm (from Z=0.0 to Z=38.5).
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 Ø55.3 mm and length at least 102.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.3 mm over length 15.0 mm (from Z=0.0 to Z=15.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.3 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 Ø45.5 mm over length 7.1 mm (from Z=0.0 to Z=82.9).
9. Finish turn diameter Ø37.8 mm over length 22.4 mm (from Z=0.0 to Z=75.8).
10. Finish turn diameter Ø30.0 mm over length 53.4 mm (from Z=0.0 to Z=53.4).
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 stainless steel round bar (material 1.4301) with diameter at least Ø42.2 mm and length at least 255.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.2 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 Ø40.2 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 Ø36.9 mm over length 16.5 mm (from Z=0.0 to Z=230.1).
10. Finish turn diameter Ø30.1 mm over length 74.9 mm (from Z=0.0 to Z=213.6).
11. Finish turn diameter Ø30.0 mm over length 138.7 mm (from Z=0.0 to Z=138.7).
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 Ø48.7 mm and length at least 280.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.7 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 Ø46.7 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 Ø38.6 mm over length 92.5 mm (from Z=0.0 to Z=259.3).
10. Finish turn diameter Ø30.0 mm over length 166.8 mm (from Z=0.0 to Z=166.8).
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 42CrMo4) with diameter at least Ø50.6 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 Ø48.6 mm over length 52.6 mm (from Z=0.0 to Z=52.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø48.6 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 Ø39.0 mm over length 63.3 mm (from Z=0.0 to Z=136.9).
9. Finish turn diameter Ø31.2 mm over length 33.6 mm (from Z=0.0 to Z=73.6).
10. Finish turn diameter Ø30.0 mm over length 40.0 mm (from Z=0.0 to Z=40.0).
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 42CrMo4) with diameter at least Ø81.6 mm and length at least 72.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.6 mm over length 5.2 mm (from Z=0.0 to Z=5.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.6 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 Ø76.2 mm over length 22.7 mm (from Z=0.0 to Z=62.3).
9. Finish turn diameter Ø60.6 mm over length 39.6 mm (from Z=0.0 to Z=39.6).
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 C45) with diameter at least Ø70.6 mm and length at least 229.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.6 mm over length 84.7 mm (from Z=0.0 to Z=84.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø68.6 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 Ø49.4 mm over length 9.8 mm (from Z=0.0 to Z=139.4).
10. Finish turn diameter Ø41.7 mm over length 73.2 mm (from Z=0.0 to Z=129.6).
11. Finish turn diameter Ø32.0 mm over length 56.4 mm (from Z=0.0 to Z=56.4).
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 C45) with diameter at least Ø36.4 mm and length at least 284.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.4 mm over length 21.5 mm (from Z=0.0 to Z=21.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø34.4 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 257.6 mm (from Z=0.0 to Z=257.6).
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 Ø32.3 mm and length at least 218.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.3 mm over length 71.0 mm (from Z=0.0 to Z=71.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.3 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 142.7 mm (from Z=0.0 to Z=142.7).
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 stainless steel round bar (material 1.4301) with diameter at least Ø59.5 mm and length at least 280.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.5 mm over length 37.9 mm (from Z=0.0 to Z=37.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.5 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 Ø44.9 mm over length 53.4 mm (from Z=0.0 to Z=237.4).
10. Finish turn diameter Ø30.0 mm over length 184.0 mm (from Z=0.0 to Z=184.0).
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 16MnCr5) with diameter at least Ø62.1 mm and length at least 271.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø60.1 mm over length 39.7 mm (from Z=0.0 to Z=39.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø60.1 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 Ø47.7 mm over length 49.1 mm (from Z=0.0 to Z=226.4).
10. Finish turn diameter Ø42.0 mm over length 36.5 mm (from Z=0.0 to Z=177.3).
11. Finish turn diameter Ø35.5 mm over length 64.7 mm (from Z=0.0 to Z=140.8).
12. Finish turn diameter Ø30.0 mm over length 76.1 mm (from Z=0.0 to Z=76.1).
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 C45) with diameter at least Ø32.0 mm and length at least 262.2 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 199.7 mm (from Z=0.0 to Z=199.7).
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 Ø27.6 mm over length 57.5 mm (from Z=0.0 to Z=57.5).
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 Ø45.7 mm and length at least 251.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø43.7 mm over length 62.7 mm (from Z=0.0 to Z=62.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø43.7 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 Ø39.8 mm over length 28.9 mm (from Z=0.0 to Z=183.9).
10. Finish turn diameter Ø30.0 mm over length 155.0 mm (from Z=0.0 to Z=155.0).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø63.7 mm and length at least 253.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø61.7 mm over length 34.0 mm (from Z=0.0 to Z=34.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø61.7 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 Ø51.0 mm over length 26.4 mm (from Z=0.0 to Z=214.3).
10. Finish turn diameter Ø39.0 mm over length 95.3 mm (from Z=0.0 to Z=187.9).
11. Finish turn diameter Ø30.0 mm over length 92.6 mm (from Z=0.0 to Z=92.6).
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 Ø43.3 mm and length at least 108.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.3 mm over length 44.1 mm (from Z=0.0 to Z=44.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.3 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 Ø33.3 mm over length 8.5 mm (from Z=0.0 to Z=58.9).
9. Finish turn diameter Ø30.0 mm over length 50.4 mm (from Z=0.0 to Z=50.4).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 116.9 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 89.1 mm (from Z=0.0 to Z=89.1).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø28.9 mm over length 22.8 mm (from Z=0.0 to Z=22.8).
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 stainless steel round bar (material 1.4301) with diameter at least Ø69.1 mm and length at least 155.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.1 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 Ø67.1 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 Ø50.7 mm over length 57.2 mm (from Z=0.0 to Z=112.9).
9. Finish turn diameter Ø44.8 mm over length 29.6 mm (from Z=0.0 to Z=55.7).
10. Finish turn diameter Ø37.9 mm over length 26.1 mm (from Z=0.0 to Z=26.1).
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 stainless steel round bar (material 1.4301) with diameter at least Ø46.3 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 Ø44.3 mm over length 44.6 mm (from Z=0.0 to Z=44.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø44.3 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 129.2 mm (from Z=0.0 to Z=129.2).
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 16MnCr5) with diameter at least Ø44.8 mm and length at least 246.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.8 mm over length 19.1 mm (from Z=0.0 to Z=19.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø42.8 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 Ø37.1 mm over length 135.1 mm (from Z=0.0 to Z=222.4).
10. Finish turn diameter Ø30.0 mm over length 87.3 mm (from Z=0.0 to Z=87.3).
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 Ø48.1 mm and length at least 183.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.1 mm over length 56.9 mm (from Z=0.0 to Z=56.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø46.1 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 Ø37.4 mm over length 65.9 mm (from Z=0.0 to Z=121.2).
9. Finish turn diameter Ø30.0 mm over length 55.3 mm (from Z=0.0 to Z=55.3).
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 Ø61.9 mm and length at least 158.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.9 mm over length 35.3 mm (from Z=0.0 to Z=35.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.9 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 Ø47.3 mm over length 7.0 mm (from Z=0.0 to Z=118.2).
9. Finish turn diameter Ø33.3 mm over length 28.5 mm (from Z=0.0 to Z=111.2).
10. Finish turn diameter Ø30.0 mm over length 82.7 mm (from Z=0.0 to Z=82.7).
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 Ø32.6 mm and length at least 106.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.6 mm over length 32.5 mm (from Z=0.0 to Z=32.5).
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 68.6 mm (from Z=0.0 to Z=68.6).
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 steel round bar (material C45) with diameter at least Ø32.0 mm and length at least 295.2 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 195.6 mm (from Z=0.0 to Z=195.6).
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 Ø18.7 mm over length 94.6 mm (from Z=0.0 to Z=94.6).
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 C45) with diameter at least Ø51.7 mm and length at least 106.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.7 mm over length 32.4 mm (from Z=0.0 to Z=32.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.7 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 Ø45.8 mm over length 22.4 mm (from Z=0.0 to Z=69.0).
9. Finish turn diameter Ø30.0 mm over length 46.6 mm (from Z=0.0 to Z=46.6).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.