[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 70.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.4 mm over length 14.4 mm (from Z=0.0 to Z=14.4).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 51.1 mm (from Z=0.0 to Z=51.1).
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 16MnCr5) with diameter at least Ø40.5 mm and length at least 302.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø38.5 mm over length 74.6 mm (from Z=0.0 to Z=74.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø38.5 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 Ø30.8 mm over length 46.6 mm (from Z=0.0 to Z=223.2).
10. Finish turn diameter Ø30.0 mm over length 176.6 mm (from Z=0.0 to Z=176.6).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 75.7 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 33.1 mm (from Z=0.0 to Z=33.1).
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 Ø20.1 mm over length 37.6 mm (from Z=0.0 to Z=37.6).
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 stainless steel round bar (material 1.4301) with diameter at least Ø81.5 mm and length at least 257.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.5 mm over length 20.2 mm (from Z=0.0 to Z=20.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.5 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 Ø63.2 mm over length 64.5 mm (from Z=0.0 to Z=232.4).
10. Finish turn diameter Ø52.9 mm over length 26.7 mm (from Z=0.0 to Z=167.9).
11. Finish turn diameter Ø33.4 mm over length 37.7 mm (from Z=0.0 to Z=141.2).
12. Finish turn diameter Ø30.0 mm over length 103.5 mm (from Z=0.0 to Z=103.5).
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 42CrMo4) with diameter at least Ø32.0 mm and length at least 205.4 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 100.5 mm (from Z=0.0 to Z=100.5).
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 Ø18.8 mm over length 99.9 mm (from Z=0.0 to Z=99.9).
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 Ø36.4 mm and length at least 305.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.4 mm over length 101.5 mm (from Z=0.0 to Z=101.5).
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 199.0 mm (from Z=0.0 to Z=199.0).
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 Ø74.5 mm and length at least 190.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.5 mm over length 54.9 mm (from Z=0.0 to Z=54.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.5 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 Ø65.3 mm over length 70.4 mm (from Z=0.0 to Z=130.9).
9. Finish turn diameter Ø61.5 mm over length 42.5 mm (from Z=0.0 to Z=60.5).
10. Finish turn diameter Ø47.6 mm over length 18.0 mm (from Z=0.0 to Z=18.0).
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 Ø42.5 mm and length at least 149.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.5 mm over length 33.6 mm (from Z=0.0 to Z=33.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø40.5 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 Ø30.0 mm over length 111.0 mm (from Z=0.0 to Z=111.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø35.1 mm and length at least 215.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.1 mm over length 38.4 mm (from Z=0.0 to Z=38.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø33.1 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 172.4 mm (from Z=0.0 to Z=172.4).
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 42CrMo4) with diameter at least Ø32.0 mm and length at least 303.2 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 279.6 mm (from Z=0.0 to Z=279.6).
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 Ø27.3 mm over length 18.6 mm (from Z=0.0 to Z=18.6).
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 Ø67.9 mm and length at least 321.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.9 mm over length 60.8 mm (from Z=0.0 to Z=60.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø65.9 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 Ø59.5 mm over length 85.8 mm (from Z=0.0 to Z=256.0).
10. Finish turn diameter Ø40.5 mm over length 29.9 mm (from Z=0.0 to Z=170.2).
11. Finish turn diameter Ø30.0 mm over length 140.3 mm (from Z=0.0 to Z=140.3).
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 C45) with diameter at least Ø37.4 mm and length at least 110.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø35.4 mm over length 5.0 mm (from Z=0.0 to Z=5.0).
5. Mount the bar in a three-jaw chuck by the holding diameter 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 100.9 mm (from Z=0.0 to Z=100.9).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø51.8 mm and length at least 320.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.8 mm over length 47.0 mm (from Z=0.0 to Z=47.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.8 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 Ø40.8 mm over length 126.1 mm (from Z=0.0 to Z=268.2).
10. Finish turn diameter Ø31.5 mm over length 33.7 mm (from Z=0.0 to Z=142.1).
11. Finish turn diameter Ø30.0 mm over length 108.4 mm (from Z=0.0 to Z=108.4).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø74.2 mm and length at least 137.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.2 mm over length 12.9 mm (from Z=0.0 to Z=12.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.2 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø65.1 mm over length 33.0 mm (from Z=0.0 to Z=119.1).
9. Finish turn diameter Ø45.3 mm over length 30.2 mm (from Z=0.0 to Z=86.1).
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 Ø61.0 mm and length at least 296.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.0 mm over length 29.1 mm (from Z=0.0 to Z=29.1).
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 Ø42.8 mm over length 100.1 mm (from Z=0.0 to Z=261.9).
10. Finish turn diameter Ø30.0 mm over length 161.8 mm (from Z=0.0 to Z=161.8).
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 Ø52.3 mm and length at least 96.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø50.3 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 Ø50.3 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 Ø35.9 mm over length 26.8 mm (from Z=0.0 to Z=75.7).
9. Finish turn diameter Ø30.1 mm over length 12.8 mm (from Z=0.0 to Z=48.9).
10. Finish turn diameter Ø30.0 mm over length 36.1 mm (from Z=0.0 to Z=36.1).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø56.8 mm and length at least 274.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.8 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 Ø54.8 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 Ø35.7 mm over length 37.7 mm (from Z=0.0 to Z=234.6).
10. Finish turn diameter Ø30.0 mm over length 196.9 mm (from Z=0.0 to Z=196.9).
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 stainless steel round bar (material 1.4301) with diameter at least Ø80.8 mm and length at least 305.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.8 mm over length 89.7 mm (from Z=0.0 to Z=89.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.8 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 Ø69.4 mm over length 13.5 mm (from Z=0.0 to Z=210.6).
10. Finish turn diameter Ø51.4 mm over length 55.5 mm (from Z=0.0 to Z=197.1).
11. Finish turn diameter Ø39.4 mm over length 51.6 mm (from Z=0.0 to Z=141.6).
12. Finish turn diameter Ø31.8 mm over length 90.0 mm (from Z=0.0 to Z=90.0).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø67.0 mm and length at least 318.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.0 mm over length 84.1 mm (from Z=0.0 to Z=84.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø65.0 mm.
6. Face the end and set Z=0.
7. 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 Ø56.5 mm over length 71.2 mm (from Z=0.0 to Z=229.8).
10. Finish turn diameter Ø51.7 mm over length 61.2 mm (from Z=0.0 to Z=158.6).
11. Finish turn diameter Ø39.3 mm over length 13.4 mm (from Z=0.0 to Z=97.4).
12. Finish turn diameter Ø33.5 mm over length 84.0 mm (from Z=0.0 to Z=84.0).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø67.7 mm and length at least 172.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.7 mm over length 62.5 mm (from Z=0.0 to Z=62.5).
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 Ø62.3 mm over length 57.5 mm (from Z=0.0 to Z=104.8).
9. Finish turn diameter Ø58.6 mm over length 47.3 mm (from Z=0.0 to Z=47.3).
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 Ø48.2 mm and length at least 257.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.2 mm over length 58.8 mm (from Z=0.0 to Z=58.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø46.2 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 Ø38.2 mm over length 64.8 mm (from Z=0.0 to Z=193.2).
10. Finish turn diameter Ø30.0 mm over length 128.4 mm (from Z=0.0 to Z=128.4).
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 Ø43.2 mm and length at least 301.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.2 mm over length 67.3 mm (from Z=0.0 to Z=67.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.2 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 229.6 mm (from Z=0.0 to Z=229.6).
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 Ø69.9 mm and length at least 103.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.9 mm over length 18.1 mm (from Z=0.0 to Z=18.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø67.9 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 Ø50.2 mm over length 9.3 mm (from Z=0.0 to Z=79.9).
9. Finish turn diameter Ø38.9 mm over length 29.6 mm (from Z=0.0 to Z=70.6).
10. Finish turn diameter Ø30.0 mm over length 41.0 mm (from Z=0.0 to Z=41.0).
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 Ø45.2 mm and length at least 284.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø43.2 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 Ø43.2 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 Ø36.8 mm over length 9.3 mm (from Z=0.0 to Z=211.1).
10. Finish turn diameter Ø30.0 mm over length 201.8 mm (from Z=0.0 to Z=201.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø48.9 mm and length at least 254.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.9 mm over length 81.1 mm (from Z=0.0 to Z=81.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø46.9 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 Ø33.2 mm over length 58.3 mm (from Z=0.0 to Z=168.6).
10. Finish turn diameter Ø30.0 mm over length 110.3 mm (from Z=0.0 to Z=110.3).
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 stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 247.7 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 152.4 mm (from Z=0.0 to Z=152.4).
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 Ø21.7 mm over length 90.3 mm (from Z=0.0 to Z=90.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø47.4 mm and length at least 99.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø45.4 mm over length 5.0 mm (from Z=0.0 to Z=5.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø45.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 89.4 mm (from Z=0.0 to Z=89.4).
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 stainless steel round bar (material 1.4301) with diameter at least Ø42.0 mm and length at least 223.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.0 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 Ø40.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø33.6 mm over length 147.2 mm (from Z=0.0 to Z=177.7).
10. Finish turn diameter Ø30.0 mm over length 30.5 mm (from Z=0.0 to Z=30.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø62.1 mm and length at least 213.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø60.1 mm over length 49.7 mm (from Z=0.0 to Z=49.7).
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 Ø53.6 mm over length 56.3 mm (from Z=0.0 to Z=158.3).
10. Finish turn diameter Ø38.1 mm over length 32.2 mm (from Z=0.0 to Z=102.0).
11. Finish turn diameter Ø30.0 mm over length 69.8 mm (from Z=0.0 to Z=69.8).
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 42CrMo4) with diameter at least Ø64.1 mm and length at least 186.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.1 mm over length 94.3 mm (from Z=0.0 to Z=94.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.1 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 Ø52.2 mm over length 68.3 mm (from Z=0.0 to Z=87.6).
9. Finish turn diameter Ø44.0 mm over length 19.3 mm (from Z=0.0 to Z=19.3).
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 Ø59.2 mm and length at least 132.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.2 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 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 Ø51.2 mm over length 24.7 mm (from Z=0.0 to Z=86.3).
9. Finish turn diameter Ø41.1 mm over length 12.5 mm (from Z=0.0 to Z=61.6).
10. Finish turn diameter Ø30.0 mm over length 49.1 mm (from Z=0.0 to Z=49.1).
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 Ø32.0 mm and length at least 151.0 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 92.7 mm (from Z=0.0 to Z=92.7).
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 Ø19.0 mm over length 53.3 mm (from Z=0.0 to Z=53.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø67.7 mm and length at least 257.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.7 mm over length 142.1 mm (from Z=0.0 to Z=142.1).
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. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø53.1 mm over length 56.3 mm (from Z=0.0 to Z=110.1).
10. Finish turn diameter Ø38.4 mm over length 53.8 mm (from Z=0.0 to Z=53.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.9 mm and length at least 88.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.9 mm over length 30.5 mm (from Z=0.0 to Z=30.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 53.1 mm (from Z=0.0 to Z=53.1).
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 42CrMo4) with diameter at least Ø69.0 mm and length at least 299.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.0 mm over length 187.7 mm (from Z=0.0 to Z=187.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø67.0 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 Ø55.5 mm over length 35.4 mm (from Z=0.0 to Z=106.4).
10. Finish turn diameter Ø52.4 mm over length 71.0 mm (from Z=0.0 to Z=71.0).
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 Ø58.5 mm and length at least 89.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.5 mm over length 18.3 mm (from Z=0.0 to Z=18.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.5 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 Ø37.9 mm over length 12.7 mm (from Z=0.0 to Z=66.1).
9. Finish turn diameter Ø32.8 mm over length 53.4 mm (from Z=0.0 to Z=53.4).
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 Ø63.4 mm and length at least 149.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø61.4 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 Ø61.4 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 Ø53.0 mm over length 33.8 mm (from Z=0.0 to Z=91.4).
9. Finish turn diameter Ø43.5 mm over length 57.6 mm (from Z=0.0 to Z=57.6).
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 Ø32.0 mm and length at least 193.5 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 146.3 mm (from Z=0.0 to Z=146.3).
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. 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 Ø24.9 mm over length 42.2 mm (from Z=0.0 to Z=42.2).
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 Ø80.2 mm and length at least 137.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.2 mm over length 26.0 mm (from Z=0.0 to Z=26.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.2 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.9 mm over length 5.0 mm (from Z=0.0 to Z=106.5).
9. Finish turn diameter Ø50.4 mm over length 39.5 mm (from Z=0.0 to Z=101.5).
10. Finish turn diameter Ø47.2 mm over length 7.5 mm (from Z=0.0 to Z=62.0).
11. Finish turn diameter Ø39.8 mm over length 27.1 mm (from Z=0.0 to Z=54.5).
12. Finish turn diameter Ø30.0 mm over length 27.4 mm (from Z=0.0 to Z=27.4).
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 42CrMo4) with diameter at least Ø81.3 mm and length at least 310.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.3 mm over length 79.6 mm (from Z=0.0 to Z=79.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.3 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 Ø72.3 mm over length 163.1 mm (from Z=0.0 to Z=226.1).
10. Finish turn diameter Ø57.1 mm over length 63.0 mm (from Z=0.0 to Z=63.0).
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 Ø50.7 mm and length at least 137.0 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 28.4 mm (from Z=0.0 to Z=28.4).
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. 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 103.6 mm (from Z=0.0 to Z=103.6).
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 Ø43.5 mm and length at least 101.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø41.5 mm over length 32.7 mm (from Z=0.0 to Z=32.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø41.5 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 Ø37.5 mm over length 5.4 mm (from Z=0.0 to Z=63.3).
9. Finish turn diameter Ø30.0 mm over length 57.9 mm (from Z=0.0 to Z=57.9).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø62.9 mm and length at least 198.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø60.9 mm over length 29.6 mm (from Z=0.0 to Z=29.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø60.9 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 38.3 mm (from Z=0.0 to Z=164.2).
10. Finish turn diameter Ø30.0 mm over length 125.9 mm (from Z=0.0 to Z=125.9).
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 Ø41.9 mm and length at least 311.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø39.9 mm over length 69.8 mm (from Z=0.0 to Z=69.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø39.9 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 236.2 mm (from Z=0.0 to Z=236.2).
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 Ø78.7 mm and length at least 250.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø76.7 mm over length 146.5 mm (from Z=0.0 to Z=146.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø76.7 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 Ø71.0 mm over length 59.0 mm (from Z=0.0 to Z=99.4).
10. Finish turn diameter Ø55.0 mm over length 40.4 mm (from Z=0.0 to Z=40.4).
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 Ø33.9 mm and length at least 116.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø31.9 mm over length 6.1 mm (from Z=0.0 to Z=6.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø31.9 mm.
6. Face the end and set Z=0.
7. 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 105.5 mm (from Z=0.0 to Z=105.5).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø50.9 mm and length at least 186.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø48.9 mm over length 36.5 mm (from Z=0.0 to Z=36.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø48.9 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 Ø41.0 mm over length 17.2 mm (from Z=0.0 to Z=145.3).
10. Finish turn diameter Ø30.0 mm over length 128.1 mm (from Z=0.0 to Z=128.1).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø71.8 mm and length at least 315.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø69.8 mm over length 85.7 mm (from Z=0.0 to Z=85.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø69.8 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 Ø51.3 mm over length 73.6 mm (from Z=0.0 to Z=224.7).
10. Finish turn diameter Ø38.5 mm over length 56.1 mm (from Z=0.0 to Z=151.1).
11. Finish turn diameter Ø30.0 mm over length 95.0 mm (from Z=0.0 to Z=95.0).
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 Ø32.0 mm and length at least 280.6 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 202.7 mm (from Z=0.0 to Z=202.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø25.3 mm over length 72.9 mm (from Z=0.0 to Z=72.9).
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 Ø77.9 mm and length at least 90.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø75.9 mm over length 7.8 mm (from Z=0.0 to Z=7.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø75.9 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 Ø64.2 mm over length 17.6 mm (from Z=0.0 to Z=77.6).
9. Finish turn diameter Ø48.6 mm over length 10.3 mm (from Z=0.0 to Z=60.0).
10. Finish turn diameter Ø33.8 mm over length 23.9 mm (from Z=0.0 to Z=49.7).
11. Finish turn diameter Ø30.0 mm over length 25.8 mm (from Z=0.0 to Z=25.8).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø69.1 mm and length at least 318.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.1 mm over length 56.3 mm (from Z=0.0 to Z=56.3).
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. 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 Ø52.5 mm over length 49.5 mm (from Z=0.0 to Z=256.9).
10. Finish turn diameter Ø32.9 mm over length 49.0 mm (from Z=0.0 to Z=207.4).
11. Finish turn diameter Ø30.0 mm over length 158.4 mm (from Z=0.0 to Z=158.4).
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 Ø36.9 mm and length at least 110.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.9 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 Ø34.9 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 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 42CrMo4) with diameter at least Ø79.1 mm and length at least 142.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.1 mm over length 59.9 mm (from Z=0.0 to Z=59.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.1 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 Ø73.5 mm over length 28.1 mm (from Z=0.0 to Z=77.6).
9. Finish turn diameter Ø69.8 mm over length 49.5 mm (from Z=0.0 to Z=49.5).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø71.7 mm and length at least 102.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø69.7 mm over length 28.8 mm (from Z=0.0 to Z=28.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø69.7 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 Ø64.9 mm over length 14.5 mm (from Z=0.0 to Z=68.5).
9. Finish turn diameter Ø58.0 mm over length 30.9 mm (from Z=0.0 to Z=54.0).
10. Finish turn diameter Ø40.7 mm over length 23.1 mm (from Z=0.0 to Z=23.1).
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 C45) with diameter at least Ø48.2 mm and length at least 121.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.2 mm over length 10.8 mm (from Z=0.0 to Z=10.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø46.2 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 Ø34.4 mm over length 25.9 mm (from Z=0.0 to Z=105.3).
9. Finish turn diameter Ø30.0 mm over length 79.4 mm (from Z=0.0 to Z=79.4).
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 233.2 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 196.6 mm (from Z=0.0 to Z=196.6).
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 Ø23.4 mm over length 31.6 mm (from Z=0.0 to Z=31.6).
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 Ø51.6 mm and length at least 226.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.6 mm over length 43.2 mm (from Z=0.0 to Z=43.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.6 mm.
6. Face the end and set Z=0.
7. 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 Ø43.5 mm over length 20.1 mm (from Z=0.0 to Z=178.6).
10. Finish turn diameter Ø36.1 mm over length 46.5 mm (from Z=0.0 to Z=158.5).
11. Finish turn diameter Ø32.7 mm over length 45.8 mm (from Z=0.0 to Z=112.0).
12. Finish turn diameter Ø30.0 mm over length 66.2 mm (from Z=0.0 to Z=66.2).
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 steel round bar (material C45) with diameter at least Ø72.0 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 Ø70.0 mm over length 13.7 mm (from Z=0.0 to Z=13.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø70.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø55.7 mm over length 18.4 mm (from Z=0.0 to Z=127.1).
9. Finish turn diameter Ø47.2 mm over length 108.7 mm (from Z=0.0 to Z=108.7).
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 Ø32.0 mm and length at least 220.3 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 168.4 mm (from Z=0.0 to Z=168.4).
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 Ø26.0 mm over length 46.9 mm (from Z=0.0 to Z=46.9).
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 Ø32.0 mm and length at least 239.4 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 220.6 mm (from Z=0.0 to Z=220.6).
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 Ø26.9 mm over length 13.8 mm (from Z=0.0 to Z=13.8).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø68.5 mm and length at least 270.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.5 mm over length 129.9 mm (from Z=0.0 to Z=129.9).
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. 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 Ø62.3 mm over length 76.0 mm (from Z=0.0 to Z=135.1).
10. Finish turn diameter Ø50.9 mm over length 59.1 mm (from Z=0.0 to Z=59.1).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø70.6 mm and length at least 96.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.6 mm over length 33.1 mm (from Z=0.0 to Z=33.1).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø48.8 mm over length 22.4 mm (from Z=0.0 to Z=58.6).
9. Finish turn diameter Ø44.3 mm over length 13.4 mm (from Z=0.0 to Z=36.2).
10. Finish turn diameter Ø30.0 mm over length 22.8 mm (from Z=0.0 to Z=22.8).
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 Ø81.5 mm and length at least 153.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.5 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 Ø79.5 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 Ø76.4 mm over length 41.5 mm (from Z=0.0 to Z=127.8).
9. Finish turn diameter Ø68.8 mm over length 10.8 mm (from Z=0.0 to Z=86.3).
10. Finish turn diameter Ø62.4 mm over length 29.5 mm (from Z=0.0 to Z=75.5).
11. Finish turn diameter Ø52.3 mm over length 34.3 mm (from Z=0.0 to Z=46.0).
12. Finish turn diameter Ø33.4 mm over length 11.7 mm (from Z=0.0 to Z=11.7).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø62.8 mm and length at least 91.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø60.8 mm over length 14.6 mm (from Z=0.0 to Z=14.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø60.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø50.5 mm over length 42.4 mm (from Z=0.0 to Z=71.5).
9. Finish turn diameter Ø39.9 mm over length 29.1 mm (from Z=0.0 to Z=29.1).
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 Ø76.9 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 Ø74.9 mm over length 124.6 mm (from Z=0.0 to Z=124.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø74.9 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 Ø65.4 mm over length 23.6 mm (from Z=0.0 to Z=145.5).
10. Finish turn diameter Ø59.0 mm over length 121.9 mm (from Z=0.0 to Z=121.9).
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 stainless steel round bar (material 1.4301) with diameter at least Ø56.2 mm and length at least 324.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.2 mm over length 78.8 mm (from Z=0.0 to Z=78.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø54.2 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 Ø34.9 mm over length 27.0 mm (from Z=0.0 to Z=240.4).
10. Finish turn diameter Ø30.0 mm over length 213.4 mm (from Z=0.0 to Z=213.4).
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 Ø56.6 mm and length at least 306.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.6 mm over length 26.3 mm (from Z=0.0 to Z=26.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø54.6 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 Ø47.4 mm over length 63.7 mm (from Z=0.0 to Z=274.7).
10. Finish turn diameter Ø42.2 mm over length 98.3 mm (from Z=0.0 to Z=211.0).
11. Finish turn diameter Ø30.0 mm over length 112.7 mm (from Z=0.0 to Z=112.7).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø52.9 mm and length at least 143.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø50.9 mm over length 17.6 mm (from Z=0.0 to Z=17.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø50.9 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 Ø31.7 mm over length 42.1 mm (from Z=0.0 to Z=120.8).
9. Finish turn diameter Ø30.0 mm over length 78.7 mm (from Z=0.0 to Z=78.7).
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 Ø71.8 mm and length at least 321.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø69.8 mm over length 63.2 mm (from Z=0.0 to Z=63.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø69.8 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 Ø65.9 mm over length 61.8 mm (from Z=0.0 to Z=252.9).
10. Finish turn diameter Ø60.2 mm over length 47.1 mm (from Z=0.0 to Z=191.1).
11. Finish turn diameter Ø52.3 mm over length 70.5 mm (from Z=0.0 to Z=144.0).
12. Finish turn diameter Ø44.3 mm over length 47.6 mm (from Z=0.0 to Z=73.5).
13. Finish turn diameter Ø35.7 mm over length 25.9 mm (from Z=0.0 to Z=25.9).
14. Break all edges (e.g., 2×45° where applicable).
15. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø73.6 mm and length at least 141.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø71.6 mm over length 40.8 mm (from Z=0.0 to Z=40.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø71.6 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 Ø54.4 mm over length 12.1 mm (from Z=0.0 to Z=95.3).
9. Finish turn diameter Ø49.5 mm over length 5.6 mm (from Z=0.0 to Z=83.2).
10. Finish turn diameter Ø31.2 mm over length 37.4 mm (from Z=0.0 to Z=77.6).
11. Finish turn diameter Ø30.0 mm over length 40.2 mm (from Z=0.0 to Z=40.2).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø34.1 mm and length at least 210.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.1 mm over length 65.2 mm (from Z=0.0 to Z=65.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.1 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 140.4 mm (from Z=0.0 to Z=140.4).
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 Ø74.2 mm and length at least 295.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.2 mm over length 28.4 mm (from Z=0.0 to Z=28.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø52.9 mm over length 48.5 mm (from Z=0.0 to Z=262.1).
10. Finish turn diameter Ø43.9 mm over length 98.5 mm (from Z=0.0 to Z=213.6).
11. Finish turn diameter Ø30.3 mm over length 86.5 mm (from Z=0.0 to Z=115.1).
12. Finish turn diameter Ø30.0 mm over length 28.6 mm (from Z=0.0 to Z=28.6).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø74.7 mm and length at least 300.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.7 mm over length 24.7 mm (from Z=0.0 to Z=24.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.7 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 Ø61.5 mm over length 91.9 mm (from Z=0.0 to Z=270.9).
10. Finish turn diameter Ø43.4 mm over length 31.9 mm (from Z=0.0 to Z=179.0).
11. Finish turn diameter Ø30.0 mm over length 147.1 mm (from Z=0.0 to Z=147.1).
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 Ø75.0 mm and length at least 304.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.0 mm over length 54.7 mm (from Z=0.0 to Z=54.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.0 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 Ø63.5 mm over length 52.3 mm (from Z=0.0 to Z=244.9).
10. Finish turn diameter Ø45.1 mm over length 35.4 mm (from Z=0.0 to Z=192.6).
11. Finish turn diameter Ø37.4 mm over length 84.3 mm (from Z=0.0 to Z=157.2).
12. Finish turn diameter Ø30.0 mm over length 72.9 mm (from Z=0.0 to Z=72.9).
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 152.2 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 102.6 mm (from Z=0.0 to Z=102.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø29.6 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 Ø79.5 mm and length at least 311.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.5 mm over length 70.8 mm (from Z=0.0 to Z=70.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø73.3 mm over length 123.9 mm (from Z=0.0 to Z=236.1).
10. Finish turn diameter Ø58.2 mm over length 112.2 mm (from Z=0.0 to Z=112.2).
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 42CrMo4) with diameter at least Ø38.1 mm and length at least 108.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.1 mm over length 21.6 mm (from Z=0.0 to Z=21.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.1 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 Ø30.0 mm over length 82.3 mm (from Z=0.0 to Z=82.3).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø40.0 mm and length at least 213.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø38.0 mm over length 21.6 mm (from Z=0.0 to Z=21.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø38.0 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 187.2 mm (from Z=0.0 to Z=187.2).
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 Ø40.7 mm and length at least 119.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø38.7 mm over length 27.7 mm (from Z=0.0 to Z=27.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø38.7 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 86.8 mm (from Z=0.0 to Z=86.8).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø70.1 mm and length at least 301.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.1 mm over length 14.7 mm (from Z=0.0 to Z=14.7).
5. Mount the bar in a three-jaw chuck by the holding diameter 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 Ø53.9 mm over length 60.2 mm (from Z=0.0 to Z=282.0).
10. Finish turn diameter Ø34.9 mm over length 46.9 mm (from Z=0.0 to Z=221.8).
11. Finish turn diameter Ø30.0 mm over length 174.9 mm (from Z=0.0 to Z=174.9).
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 Ø80.3 mm and length at least 223.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.3 mm over length 22.9 mm (from Z=0.0 to Z=22.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.3 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 Ø60.6 mm over length 53.3 mm (from Z=0.0 to Z=195.3).
10. Finish turn diameter Ø44.3 mm over length 114.9 mm (from Z=0.0 to Z=142.0).
11. Finish turn diameter Ø39.6 mm over length 27.1 mm (from Z=0.0 to Z=27.1).
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 Ø59.7 mm and length at least 128.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.7 mm over length 18.4 mm (from Z=0.0 to Z=18.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.7 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 Ø45.0 mm over length 17.8 mm (from Z=0.0 to Z=105.5).
9. Finish turn diameter Ø39.8 mm over length 40.1 mm (from Z=0.0 to Z=87.7).
10. Finish turn diameter Ø36.6 mm over length 16.5 mm (from Z=0.0 to Z=47.6).
11. Finish turn diameter Ø30.0 mm over length 31.1 mm (from Z=0.0 to Z=31.1).
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 Ø32.0 mm and length at least 70.6 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 51.6 mm (from Z=0.0 to Z=51.6).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø29.0 mm over length 14.0 mm (from Z=0.0 to Z=14.0).
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 Ø58.5 mm and length at least 195.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.5 mm over length 86.0 mm (from Z=0.0 to Z=86.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.5 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 Ø52.1 mm over length 54.2 mm (from Z=0.0 to Z=104.9).
10. Finish turn diameter Ø40.4 mm over length 38.7 mm (from Z=0.0 to Z=50.7).
11. Finish turn diameter Ø33.7 mm over length 12.0 mm (from Z=0.0 to Z=12.0).
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 Ø56.6 mm and length at least 122.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.6 mm over length 18.3 mm (from Z=0.0 to Z=18.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø54.6 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 Ø43.9 mm over length 29.7 mm (from Z=0.0 to Z=98.7).
9. Finish turn diameter Ø30.0 mm over length 69.0 mm (from Z=0.0 to Z=69.0).
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 Ø44.8 mm and length at least 233.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.8 mm over length 74.7 mm (from Z=0.0 to Z=74.7).
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 Ø31.5 mm over length 103.5 mm (from Z=0.0 to Z=154.0).
10. Finish turn diameter Ø30.0 mm over length 50.5 mm (from Z=0.0 to Z=50.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø53.4 mm and length at least 161.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.4 mm over length 37.0 mm (from Z=0.0 to Z=37.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.4 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 Ø33.3 mm over length 28.1 mm (from Z=0.0 to Z=119.2).
10. Finish turn diameter Ø30.0 mm over length 91.1 mm (from Z=0.0 to Z=91.1).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø38.9 mm and length at least 232.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.9 mm over length 38.4 mm (from Z=0.0 to Z=38.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 189.4 mm (from Z=0.0 to Z=189.4).
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 Ø32.0 mm and length at least 306.7 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 242.6 mm (from Z=0.0 to Z=242.6).
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 Ø26.2 mm over length 59.1 mm (from Z=0.0 to Z=59.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø39.3 mm and length at least 117.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø37.3 mm over length 14.0 mm (from Z=0.0 to Z=14.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø37.3 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 98.8 mm (from Z=0.0 to Z=98.8).
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 Ø32.0 mm and length at least 94.5 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 60.4 mm (from Z=0.0 to Z=60.4).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø23.8 mm over length 29.1 mm (from Z=0.0 to Z=29.1).
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 Ø70.1 mm and length at least 67.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.1 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 Ø68.1 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 Ø59.6 mm over length 5.0 mm (from Z=0.0 to Z=48.5).
9. Finish turn diameter Ø51.7 mm over length 12.0 mm (from Z=0.0 to Z=43.5).
10. Finish turn diameter Ø48.0 mm over length 31.5 mm (from Z=0.0 to Z=31.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø69.0 mm and length at least 312.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.0 mm over length 88.3 mm (from Z=0.0 to Z=88.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø67.0 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 Ø53.1 mm over length 52.0 mm (from Z=0.0 to Z=219.1).
10. Finish turn diameter Ø49.0 mm over length 39.1 mm (from Z=0.0 to Z=167.1).
11. Finish turn diameter Ø36.6 mm over length 60.7 mm (from Z=0.0 to Z=128.0).
12. Finish turn diameter Ø32.9 mm over length 67.3 mm (from Z=0.0 to Z=67.3).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø58.7 mm and length at least 159.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.7 mm over length 65.9 mm (from Z=0.0 to Z=65.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.7 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 Ø50.0 mm over length 16.9 mm (from Z=0.0 to Z=88.2).
9. Finish turn diameter Ø33.7 mm over length 71.3 mm (from Z=0.0 to Z=71.3).
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 C45) with diameter at least Ø44.4 mm and length at least 275.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.4 mm over length 34.4 mm (from Z=0.0 to Z=34.4).
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. 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 Ø38.1 mm over length 87.0 mm (from Z=0.0 to Z=236.3).
10. Finish turn diameter Ø30.0 mm over length 149.3 mm (from Z=0.0 to Z=149.3).
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 Ø61.0 mm and length at least 299.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.0 mm over length 34.9 mm (from Z=0.0 to Z=34.9).
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 Ø48.9 mm over length 84.9 mm (from Z=0.0 to Z=259.9).
10. Finish turn diameter Ø32.6 mm over length 24.3 mm (from Z=0.0 to Z=175.0).
11. Finish turn diameter Ø30.0 mm over length 150.7 mm (from Z=0.0 to Z=150.7).
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 Ø65.9 mm and length at least 175.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.9 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 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 Ø58.7 mm over length 36.2 mm (from Z=0.0 to Z=117.9).
9. Finish turn diameter Ø47.3 mm over length 20.6 mm (from Z=0.0 to Z=81.7).
10. Finish turn diameter Ø30.0 mm over length 61.1 mm (from Z=0.0 to Z=61.1).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø44.4 mm and length at least 236.5 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 37.6 mm (from Z=0.0 to Z=37.6).
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. 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 71.7 mm (from Z=0.0 to Z=193.9).
10. Finish turn diameter Ø30.0 mm over length 122.2 mm (from Z=0.0 to Z=122.2).
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 42CrMo4) with diameter at least Ø32.0 mm and length at least 317.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 199.0 mm (from Z=0.0 to Z=199.0).
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 Ø24.2 mm over length 113.6 mm (from Z=0.0 to Z=113.6).
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 Ø60.7 mm and length at least 114.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø58.7 mm over length 17.3 mm (from Z=0.0 to Z=17.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø58.7 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 Ø45.5 mm over length 40.7 mm (from Z=0.0 to Z=92.3).
9. Finish turn diameter Ø30.0 mm over length 51.6 mm (from Z=0.0 to Z=51.6).
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 Ø69.3 mm and length at least 90.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.3 mm over length 22.5 mm (from Z=0.0 to Z=22.5).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.2 mm over length 8.7 mm (from Z=0.0 to Z=63.4).
9. Finish turn diameter Ø58.3 mm over length 28.8 mm (from Z=0.0 to Z=54.7).
10. Finish turn diameter Ø40.1 mm over length 25.9 mm (from Z=0.0 to Z=25.9).
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 stainless steel round bar (material 1.4301) with diameter at least Ø32.0 mm and length at least 96.4 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 75.1 mm (from Z=0.0 to Z=75.1).
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 Ø24.4 mm over length 16.3 mm (from Z=0.0 to Z=16.3).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø75.2 mm and length at least 156.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.2 mm over length 43.0 mm (from Z=0.0 to Z=43.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.2 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 Ø61.6 mm over length 35.4 mm (from Z=0.0 to Z=108.4).
9. Finish turn diameter Ø57.0 mm over length 73.0 mm (from Z=0.0 to Z=73.0).
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 stainless steel round bar (material 1.4301) with diameter at least Ø64.5 mm and length at least 230.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.5 mm over length 10.0 mm (from Z=0.0 to Z=10.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.5 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 Ø51.2 mm over length 57.8 mm (from Z=0.0 to Z=215.0).
10. Finish turn diameter Ø46.7 mm over length 30.8 mm (from Z=0.0 to Z=157.2).
11. Finish turn diameter Ø30.4 mm over length 51.4 mm (from Z=0.0 to Z=126.4).
12. Finish turn diameter Ø30.0 mm over length 75.0 mm (from Z=0.0 to Z=75.0).
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 Ø39.7 mm and length at least 189.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø37.7 mm over length 34.2 mm (from Z=0.0 to Z=34.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø37.7 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 150.1 mm (from Z=0.0 to Z=150.1).
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 Ø67.5 mm and length at least 189.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø65.5 mm over length 44.2 mm (from Z=0.0 to Z=44.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø65.5 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 Ø57.4 mm over length 22.1 mm (from Z=0.0 to Z=140.6).
9. Finish turn diameter Ø52.5 mm over length 68.3 mm (from Z=0.0 to Z=118.5).
10. Finish turn diameter Ø40.8 mm over length 50.2 mm (from Z=0.0 to Z=50.2).
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 stainless steel round bar (material 1.4301) with diameter at least Ø76.4 mm and length at least 165.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø74.4 mm over length 45.2 mm (from Z=0.0 to Z=45.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø74.4 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 Ø61.1 mm over length 42.9 mm (from Z=0.0 to Z=114.8).
9. Finish turn diameter Ø54.7 mm over length 21.6 mm (from Z=0.0 to Z=71.9).
10. Finish turn diameter Ø41.9 mm over length 25.6 mm (from Z=0.0 to Z=50.3).
11. Finish turn diameter Ø36.2 mm over length 24.7 mm (from Z=0.0 to Z=24.7).
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 16MnCr5) with diameter at least Ø34.0 mm and length at least 263.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.0 mm over length 36.0 mm (from Z=0.0 to Z=36.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 222.2 mm (from Z=0.0 to Z=222.2).
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 Ø80.4 mm and length at least 228.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.4 mm over length 61.4 mm (from Z=0.0 to Z=61.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.4 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 Ø71.9 mm over length 6.0 mm (from Z=0.0 to Z=162.2).
10. Finish turn diameter Ø62.5 mm over length 27.0 mm (from Z=0.0 to Z=156.2).
11. Finish turn diameter Ø46.7 mm over length 44.5 mm (from Z=0.0 to Z=129.2).
12. Finish turn diameter Ø40.8 mm over length 47.4 mm (from Z=0.0 to Z=84.7).
13. Finish turn diameter Ø30.0 mm over length 37.3 mm (from Z=0.0 to Z=37.3).
14. Break all edges (e.g., 2×45° where applicable).
15. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø42.7 mm and length at least 102.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.7 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 Ø40.7 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 75.3 mm (from Z=0.0 to Z=75.3).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.