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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø54.7 mm and length at least 111.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø52.7 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 Ø52.7 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 Ø43.0 mm over length 29.7 mm (from Z=0.0 to Z=95.4).
9. Finish turn diameter Ø34.6 mm over length 5.0 mm (from Z=0.0 to Z=65.7).
10. Finish turn diameter Ø30.0 mm over length 60.7 mm (from Z=0.0 to Z=60.7).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø55.9 mm and length at least 74.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.9 mm over length 9.7 mm (from Z=0.0 to Z=9.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø45.6 mm over length 7.1 mm (from Z=0.0 to Z=60.0).
9. Finish turn diameter Ø30.3 mm over length 8.9 mm (from Z=0.0 to Z=52.9).
10. Finish turn diameter Ø30.0 mm over length 44.0 mm (from Z=0.0 to Z=44.0).
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 Ø81.2 mm and length at least 175.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.2 mm over length 52.6 mm (from Z=0.0 to Z=52.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.2 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 Ø69.6 mm over length 47.9 mm (from Z=0.0 to Z=118.1).
9. Finish turn diameter Ø62.2 mm over length 8.4 mm (from Z=0.0 to Z=70.2).
10. Finish turn diameter Ø43.8 mm over length 30.1 mm (from Z=0.0 to Z=61.8).
11. Finish turn diameter Ø31.4 mm over length 31.7 mm (from Z=0.0 to Z=31.7).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø53.6 mm and length at least 190.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.6 mm over length 31.0 mm (from Z=0.0 to Z=31.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.6 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø43.3 mm over length 109.5 mm (from Z=0.0 to Z=154.9).
9. Finish turn diameter Ø30.0 mm over length 45.4 mm (from Z=0.0 to Z=45.4).
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 Ø51.4 mm and length at least 83.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.4 mm over length 12.0 mm (from Z=0.0 to Z=12.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø31.6 mm over length 14.0 mm (from Z=0.0 to Z=66.7).
9. Finish turn diameter Ø30.0 mm over length 52.7 mm (from Z=0.0 to Z=52.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø41.4 mm and length at least 194.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø39.4 mm over length 8.7 mm (from Z=0.0 to Z=8.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø39.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø31.1 mm over length 11.9 mm (from Z=0.0 to Z=180.5).
10. Finish turn diameter Ø30.0 mm over length 168.6 mm (from Z=0.0 to Z=168.6).
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 Ø77.4 mm and length at least 185.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø75.4 mm over length 63.6 mm (from Z=0.0 to Z=63.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø75.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø66.4 mm over length 53.6 mm (from Z=0.0 to Z=116.6).
9. Finish turn diameter Ø46.6 mm over length 63.0 mm (from Z=0.0 to Z=63.0).
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 Ø60.3 mm and length at least 261.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø58.3 mm over length 66.9 mm (from Z=0.0 to Z=66.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø58.3 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 Ø42.1 mm over length 45.4 mm (from Z=0.0 to Z=189.9).
10. Finish turn diameter Ø33.8 mm over length 43.5 mm (from Z=0.0 to Z=144.5).
11. Finish turn diameter Ø30.0 mm over length 101.0 mm (from Z=0.0 to Z=101.0).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø33.4 mm and length at least 111.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø31.4 mm over length 31.0 mm (from Z=0.0 to Z=31.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø31.4 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 75.0 mm (from Z=0.0 to Z=75.0).
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 stainless steel round bar (material 1.4301) with diameter at least Ø61.5 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 Ø59.5 mm over length 73.4 mm (from Z=0.0 to Z=73.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø49.0 mm over length 42.8 mm (from Z=0.0 to Z=220.7).
10. Finish turn diameter Ø31.6 mm over length 75.0 mm (from Z=0.0 to Z=177.9).
11. Finish turn diameter Ø30.0 mm over length 102.9 mm (from Z=0.0 to Z=102.9).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø39.7 mm and length at least 72.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø37.7 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 Ø37.7 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 47.3 mm (from Z=0.0 to Z=47.3).
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 16MnCr5) with diameter at least Ø52.9 mm and length at least 156.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø50.9 mm over length 35.5 mm (from Z=0.0 to Z=35.5).
5. Mount the bar in a three-jaw chuck by the holding diameter 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 Ø32.8 mm over length 67.2 mm (from Z=0.0 to Z=115.5).
9. Finish turn diameter Ø30.0 mm over length 48.3 mm (from Z=0.0 to Z=48.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 138.2 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 80.1 mm (from Z=0.0 to Z=80.1).
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 Ø29.4 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 16MnCr5) with diameter at least Ø79.8 mm and length at least 205.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.8 mm over length 55.1 mm (from Z=0.0 to Z=55.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.8 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 Ø61.8 mm over length 45.8 mm (from Z=0.0 to Z=145.4).
10. Finish turn diameter Ø58.7 mm over length 46.9 mm (from Z=0.0 to Z=99.6).
11. Finish turn diameter Ø53.7 mm over length 25.8 mm (from Z=0.0 to Z=52.7).
12. Finish turn diameter Ø35.0 mm over length 26.9 mm (from Z=0.0 to Z=26.9).
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 Ø66.3 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 Ø64.3 mm over length 95.6 mm (from Z=0.0 to Z=95.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.3 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø57.5 mm over length 19.4 mm (from Z=0.0 to Z=92.9).
9. Finish turn diameter Ø51.7 mm over length 73.5 mm (from Z=0.0 to Z=73.5).
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 Ø58.4 mm and length at least 246.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.4 mm over length 106.6 mm (from Z=0.0 to Z=106.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.4 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø41.6 mm over length 101.3 mm (from Z=0.0 to Z=135.1).
10. Finish turn diameter Ø33.8 mm over length 33.8 mm (from Z=0.0 to Z=33.8).
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 Ø74.2 mm and length at least 238.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.2 mm over length 49.6 mm (from Z=0.0 to Z=49.6).
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 Ø52.2 mm over length 125.9 mm (from Z=0.0 to Z=184.3).
10. Finish turn diameter Ø38.2 mm over length 58.4 mm (from Z=0.0 to Z=58.4).
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 C45) with diameter at least Ø32.0 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 Ø30.0 mm over length 149.7 mm (from Z=0.0 to Z=149.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø27.1 mm over length 102.3 mm (from Z=0.0 to Z=102.3).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø66.0 mm and length at least 129.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø64.0 mm over length 6.2 mm (from Z=0.0 to Z=6.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø64.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø48.0 mm over length 27.7 mm (from Z=0.0 to Z=117.9).
9. Finish turn diameter Ø44.1 mm over length 38.1 mm (from Z=0.0 to Z=90.2).
10. Finish turn diameter Ø30.0 mm over length 52.1 mm (from Z=0.0 to Z=52.1).
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 Ø58.7 mm and length at least 298.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.7 mm over length 34.7 mm (from Z=0.0 to Z=34.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.7 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 Ø41.3 mm over length 39.7 mm (from Z=0.0 to Z=258.5).
10. Finish turn diameter Ø30.0 mm over length 218.8 mm (from Z=0.0 to Z=218.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 126.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 61.2 mm (from Z=0.0 to Z=61.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø19.5 mm over length 60.7 mm (from Z=0.0 to Z=60.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø74.2 mm and length at least 178.5 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 31.2 mm (from Z=0.0 to Z=31.2).
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 Ø57.7 mm over length 113.6 mm (from Z=0.0 to Z=142.3).
9. Finish turn diameter Ø44.7 mm over length 28.7 mm (from Z=0.0 to Z=28.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø44.1 mm and length at least 294.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.1 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 Ø42.1 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 257.0 mm (from Z=0.0 to Z=257.0).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø79.9 mm and length at least 316.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.9 mm over length 87.3 mm (from Z=0.0 to Z=87.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.9 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 Ø74.8 mm over length 31.9 mm (from Z=0.0 to Z=223.9).
10. Finish turn diameter Ø54.9 mm over length 76.9 mm (from Z=0.0 to Z=192.0).
11. Finish turn diameter Ø43.4 mm over length 73.1 mm (from Z=0.0 to Z=115.1).
12. Finish turn diameter Ø39.3 mm over length 42.0 mm (from Z=0.0 to Z=42.0).
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 Ø74.7 mm and length at least 238.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.7 mm over length 22.3 mm (from Z=0.0 to Z=22.3).
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 Ø63.6 mm over length 58.3 mm (from Z=0.0 to Z=210.9).
10. Finish turn diameter Ø46.8 mm over length 52.1 mm (from Z=0.0 to Z=152.6).
11. Finish turn diameter Ø30.0 mm over length 100.5 mm (from Z=0.0 to Z=100.5).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø81.9 mm and length at least 74.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.9 mm over length 5.1 mm (from Z=0.0 to Z=5.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø66.6 mm over length 13.3 mm (from Z=0.0 to Z=64.6).
9. Finish turn diameter Ø57.2 mm over length 14.8 mm (from Z=0.0 to Z=51.3).
10. Finish turn diameter Ø45.8 mm over length 10.2 mm (from Z=0.0 to Z=36.5).
11. Finish turn diameter Ø30.0 mm over length 26.3 mm (from Z=0.0 to Z=26.3).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø64.9 mm and length at least 147.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.9 mm over length 27.6 mm (from Z=0.0 to Z=27.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.9 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 Ø53.8 mm over length 33.3 mm (from Z=0.0 to Z=114.5).
9. Finish turn diameter Ø46.4 mm over length 26.2 mm (from Z=0.0 to Z=81.2).
10. Finish turn diameter Ø35.8 mm over length 31.7 mm (from Z=0.0 to Z=55.0).
11. Finish turn diameter Ø30.0 mm over length 23.3 mm (from Z=0.0 to Z=23.3).
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 42CrMo4) with diameter at least Ø40.8 mm and length at least 261.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø38.8 mm over length 97.0 mm (from Z=0.0 to Z=97.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø38.8 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 Ø31.3 mm over length 91.1 mm (from Z=0.0 to Z=159.3).
10. Finish turn diameter Ø30.0 mm over length 68.2 mm (from Z=0.0 to Z=68.2).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø35.2 mm and length at least 73.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.2 mm over length 9.5 mm (from Z=0.0 to Z=9.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø33.2 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 59.1 mm (from Z=0.0 to Z=59.1).
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 Ø47.0 mm and length at least 227.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø45.0 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 Ø45.0 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 Ø41.7 mm over length 54.1 mm (from Z=0.0 to Z=199.9).
10. Finish turn diameter Ø30.0 mm over length 145.8 mm (from Z=0.0 to Z=145.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø34.1 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 Ø32.1 mm over length 77.9 mm (from Z=0.0 to Z=77.9).
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 235.3 mm (from Z=0.0 to Z=235.3).
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 Ø49.2 mm and length at least 215.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø47.2 mm over length 147.5 mm (from Z=0.0 to Z=147.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø47.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø40.8 mm over length 24.2 mm (from Z=0.0 to Z=62.5).
10. Finish turn diameter Ø33.6 mm over length 38.3 mm (from Z=0.0 to Z=38.3).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø37.7 mm and length at least 188.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø35.7 mm over length 11.2 mm (from Z=0.0 to Z=11.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø35.7 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 172.7 mm (from Z=0.0 to Z=172.7).
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 Ø60.5 mm and length at least 221.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø58.5 mm over length 100.2 mm (from Z=0.0 to Z=100.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø58.5 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 Ø52.7 mm over length 27.7 mm (from Z=0.0 to Z=116.1).
10. Finish turn diameter Ø40.6 mm over length 88.4 mm (from Z=0.0 to Z=88.4).
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 C45) with diameter at least Ø59.1 mm and length at least 177.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.1 mm over length 16.4 mm (from Z=0.0 to Z=16.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.1 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 Ø48.0 mm over length 32.5 mm (from Z=0.0 to Z=155.7).
9. Finish turn diameter Ø35.5 mm over length 45.8 mm (from Z=0.0 to Z=123.2).
10. Finish turn diameter Ø30.0 mm over length 77.4 mm (from Z=0.0 to Z=77.4).
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 Ø38.9 mm and length at least 281.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.9 mm over length 91.5 mm (from Z=0.0 to Z=91.5).
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 184.6 mm (from Z=0.0 to Z=184.6).
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 Ø53.1 mm and length at least 287.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.1 mm over length 71.0 mm (from Z=0.0 to Z=71.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.1 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 Ø45.2 mm over length 44.2 mm (from Z=0.0 to Z=211.2).
10. Finish turn diameter Ø34.6 mm over length 38.7 mm (from Z=0.0 to Z=167.0).
11. Finish turn diameter Ø30.0 mm over length 128.3 mm (from Z=0.0 to Z=128.3).
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 42CrMo4) with diameter at least Ø69.5 mm and length at least 110.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø67.5 mm over length 16.4 mm (from Z=0.0 to Z=16.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø67.5 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø50.6 mm over length 51.3 mm (from Z=0.0 to Z=89.4).
9. Finish turn diameter Ø36.2 mm over length 38.1 mm (from Z=0.0 to Z=38.1).
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 Ø61.1 mm and length at least 67.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.1 mm over length 19.4 mm (from Z=0.0 to Z=19.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.1 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 Ø40.7 mm over length 6.2 mm (from Z=0.0 to Z=43.3).
9. Finish turn diameter Ø30.0 mm over length 37.1 mm (from Z=0.0 to Z=37.1).
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 Ø61.7 mm and length at least 250.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.7 mm over length 9.7 mm (from Z=0.0 to Z=9.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.7 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 Ø52.0 mm over length 21.2 mm (from Z=0.0 to Z=235.4).
10. Finish turn diameter Ø46.5 mm over length 55.8 mm (from Z=0.0 to Z=214.2).
11. Finish turn diameter Ø30.5 mm over length 69.4 mm (from Z=0.0 to Z=158.4).
12. Finish turn diameter Ø30.0 mm over length 89.0 mm (from Z=0.0 to Z=89.0).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø75.9 mm and length at least 216.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.9 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 Ø73.9 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 Ø60.4 mm over length 9.4 mm (from Z=0.0 to Z=196.7).
10. Finish turn diameter Ø53.9 mm over length 42.3 mm (from Z=0.0 to Z=187.3).
11. Finish turn diameter Ø47.3 mm over length 74.8 mm (from Z=0.0 to Z=145.0).
12. Finish turn diameter Ø30.0 mm over length 70.2 mm (from Z=0.0 to Z=70.2).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 220.5 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 160.9 mm (from Z=0.0 to Z=160.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø26.9 mm over length 54.6 mm (from Z=0.0 to Z=54.6).
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 Ø53.1 mm and length at least 180.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø51.1 mm over length 55.2 mm (from Z=0.0 to Z=55.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø51.1 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 Ø46.2 mm over length 19.7 mm (from Z=0.0 to Z=120.2).
9. Finish turn diameter Ø31.5 mm over length 76.8 mm (from Z=0.0 to Z=100.5).
10. Finish turn diameter Ø30.0 mm over length 23.7 mm (from Z=0.0 to Z=23.7).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø75.6 mm and length at least 70.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.6 mm over length 10.7 mm (from Z=0.0 to Z=10.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.6 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 Ø70.0 mm over length 7.5 mm (from Z=0.0 to Z=54.4).
9. Finish turn diameter Ø66.3 mm over length 10.2 mm (from Z=0.0 to Z=46.9).
10. Finish turn diameter Ø57.6 mm over length 7.3 mm (from Z=0.0 to Z=36.7).
11. Finish turn diameter Ø42.1 mm over length 15.0 mm (from Z=0.0 to Z=29.4).
12. Finish turn diameter Ø32.6 mm over length 14.4 mm (from Z=0.0 to Z=14.4).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø36.3 mm and length at least 252.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.3 mm over length 158.3 mm (from Z=0.0 to Z=158.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø34.3 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 89.5 mm (from Z=0.0 to Z=89.5).
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 Ø39.3 mm and length at least 249.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø37.3 mm over length 59.8 mm (from Z=0.0 to Z=59.8).
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 185.1 mm (from Z=0.0 to Z=185.1).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø47.9 mm and length at least 112.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø45.9 mm over length 22.8 mm (from Z=0.0 to Z=22.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø45.9 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 Ø42.6 mm over length 8.9 mm (from Z=0.0 to Z=84.5).
9. Finish turn diameter Ø30.0 mm over length 75.6 mm (from Z=0.0 to Z=75.6).
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 Ø35.0 mm and length at least 123.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.0 mm over length 57.5 mm (from Z=0.0 to Z=57.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø33.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 61.0 mm (from Z=0.0 to Z=61.0).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø59.8 mm and length at least 139.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.8 mm over length 66.6 mm (from Z=0.0 to Z=66.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.8 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø46.1 mm over length 50.6 mm (from Z=0.0 to Z=67.8).
9. Finish turn diameter Ø38.3 mm over length 17.2 mm (from Z=0.0 to Z=17.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø42.1 mm and length at least 284.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.1 mm over length 77.4 mm (from Z=0.0 to Z=77.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø40.1 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 202.0 mm (from Z=0.0 to Z=202.0).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø40.4 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 Ø38.4 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 Ø38.4 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 270.4 mm (from Z=0.0 to Z=270.4).
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 Ø74.4 mm and length at least 80.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø72.4 mm over length 11.8 mm (from Z=0.0 to Z=11.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø72.4 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø59.3 mm over length 33.8 mm (from Z=0.0 to Z=63.5).
9. Finish turn diameter Ø44.2 mm over length 29.7 mm (from Z=0.0 to Z=29.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø34.8 mm and length at least 249.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø32.8 mm over length 56.7 mm (from Z=0.0 to Z=56.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø32.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 187.7 mm (from Z=0.0 to Z=187.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø40.3 mm and length at least 120.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø38.3 mm over length 42.1 mm (from Z=0.0 to Z=42.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø38.3 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 Ø34.3 mm over length 5.6 mm (from Z=0.0 to Z=73.3).
9. Finish turn diameter Ø30.0 mm over length 67.7 mm (from Z=0.0 to Z=67.7).
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 Ø81.9 mm and length at least 77.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø79.9 mm over length 12.6 mm (from Z=0.0 to Z=12.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø79.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø63.1 mm over length 22.8 mm (from Z=0.0 to Z=60.0).
9. Finish turn diameter Ø55.7 mm over length 11.4 mm (from Z=0.0 to Z=37.2).
10. Finish turn diameter Ø51.8 mm over length 20.1 mm (from Z=0.0 to Z=25.8).
11. Finish turn diameter Ø40.1 mm over length 5.7 mm (from Z=0.0 to Z=5.7).
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 Ø63.7 mm and length at least 93.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø61.7 mm over length 26.3 mm (from Z=0.0 to Z=26.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø61.7 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø51.6 mm over length 18.6 mm (from Z=0.0 to Z=62.0).
9. Finish turn diameter Ø46.8 mm over length 31.3 mm (from Z=0.0 to Z=43.4).
10. Finish turn diameter Ø34.2 mm over length 12.1 mm (from Z=0.0 to Z=12.1).
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 Ø58.0 mm and length at least 209.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.0 mm over length 46.4 mm (from Z=0.0 to Z=46.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø41.5 mm over length 45.1 mm (from Z=0.0 to Z=157.7).
10. Finish turn diameter Ø35.6 mm over length 24.8 mm (from Z=0.0 to Z=112.6).
11. Finish turn diameter Ø30.0 mm over length 87.8 mm (from Z=0.0 to Z=87.8).
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 Ø79.9 mm and length at least 231.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.9 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 Ø77.9 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 Ø59.6 mm over length 40.1 mm (from Z=0.0 to Z=188.5).
10. Finish turn diameter Ø40.3 mm over length 24.7 mm (from Z=0.0 to Z=148.4).
11. Finish turn diameter Ø30.0 mm over length 123.7 mm (from Z=0.0 to Z=123.7).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø80.7 mm and length at least 153.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.7 mm over length 16.5 mm (from Z=0.0 to Z=16.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø78.7 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 Ø69.9 mm over length 37.7 mm (from Z=0.0 to Z=131.5).
9. Finish turn diameter Ø58.9 mm over length 40.3 mm (from Z=0.0 to Z=93.8).
10. Finish turn diameter Ø50.3 mm over length 33.4 mm (from Z=0.0 to Z=53.5).
11. Finish turn diameter Ø32.1 mm over length 5.1 mm (from Z=0.0 to Z=20.1).
12. Finish turn diameter Ø30.0 mm over length 15.0 mm (from Z=0.0 to Z=15.0).
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 C45) with diameter at least Ø41.1 mm and length at least 264.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø39.1 mm over length 139.5 mm (from Z=0.0 to Z=139.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø39.1 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 119.9 mm (from Z=0.0 to Z=119.9).
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 16MnCr5) with diameter at least Ø54.8 mm and length at least 171.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø52.8 mm over length 51.7 mm (from Z=0.0 to Z=51.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø52.8 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 Ø38.4 mm over length 51.7 mm (from Z=0.0 to Z=115.2).
9. Finish turn diameter Ø30.0 mm over length 63.5 mm (from Z=0.0 to Z=63.5).
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 C45) with diameter at least Ø37.0 mm and length at least 262.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø35.0 mm over length 67.9 mm (from Z=0.0 to Z=67.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø35.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 189.2 mm (from Z=0.0 to Z=189.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø78.7 mm and length at least 78.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø76.7 mm over length 20.1 mm (from Z=0.0 to Z=20.1).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø64.1 mm over length 17.8 mm (from Z=0.0 to Z=53.0).
9. Finish turn diameter Ø45.4 mm over length 15.8 mm (from Z=0.0 to Z=35.2).
10. Finish turn diameter Ø34.4 mm over length 14.4 mm (from Z=0.0 to Z=19.4).
11. Finish turn diameter Ø30.0 mm over length 5.0 mm (from Z=0.0 to Z=5.0).
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 Ø61.0 mm and length at least 215.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.0 mm over length 55.7 mm (from Z=0.0 to Z=55.7).
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 Ø41.3 mm over length 21.1 mm (from Z=0.0 to Z=154.7).
10. Finish turn diameter Ø35.7 mm over length 85.2 mm (from Z=0.0 to Z=133.6).
11. Finish turn diameter Ø30.0 mm over length 48.4 mm (from Z=0.0 to Z=48.4).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material C45) with diameter at least Ø42.0 mm and length at least 132.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø40.0 mm over length 15.1 mm (from Z=0.0 to Z=15.1).
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. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø34.6 mm over length 25.9 mm (from Z=0.0 to Z=112.8).
9. Finish turn diameter Ø30.0 mm over length 86.9 mm (from Z=0.0 to Z=86.9).
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 231.5 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 123.6 mm (from Z=0.0 to Z=123.6).
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 Ø27.9 mm over length 102.9 mm (from Z=0.0 to Z=102.9).
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 Ø75.9 mm and length at least 271.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.9 mm over length 74.5 mm (from Z=0.0 to Z=74.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø73.9 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 Ø58.0 mm over length 25.1 mm (from Z=0.0 to Z=192.2).
10. Finish turn diameter Ø48.4 mm over length 72.2 mm (from Z=0.0 to Z=167.1).
11. Finish turn diameter Ø38.5 mm over length 34.2 mm (from Z=0.0 to Z=94.9).
12. Finish turn diameter Ø30.0 mm over length 60.7 mm (from Z=0.0 to Z=60.7).
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 Ø64.6 mm and length at least 273.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.6 mm over length 132.2 mm (from Z=0.0 to Z=132.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.6 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø45.1 mm over length 23.4 mm (from Z=0.0 to Z=136.3).
10. Finish turn diameter Ø34.1 mm over length 46.6 mm (from Z=0.0 to Z=112.9).
11. Finish turn diameter Ø30.0 mm over length 66.3 mm (from Z=0.0 to Z=66.3).
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 stainless steel round bar (material 1.4301) with diameter at least Ø48.4 mm and length at least 227.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø46.4 mm over length 114.1 mm (from Z=0.0 to Z=114.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø46.4 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 Ø35.4 mm over length 46.8 mm (from Z=0.0 to Z=108.3).
10. Finish turn diameter Ø30.0 mm over length 61.5 mm (from Z=0.0 to Z=61.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø32.0 mm and length at least 176.2 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 157.7 mm (from Z=0.0 to Z=157.7).
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 Ø23.0 mm over length 13.5 mm (from Z=0.0 to Z=13.5).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 216.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 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 Ø20.5 mm over length 43.4 mm (from Z=0.0 to Z=43.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø79.9 mm and length at least 127.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø77.9 mm over length 31.6 mm (from Z=0.0 to Z=31.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø77.9 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 Ø72.5 mm over length 33.7 mm (from Z=0.0 to Z=91.3).
9. Finish turn diameter Ø68.2 mm over length 5.7 mm (from Z=0.0 to Z=57.6).
10. Finish turn diameter Ø58.3 mm over length 31.2 mm (from Z=0.0 to Z=51.9).
11. Finish turn diameter Ø47.0 mm over length 5.5 mm (from Z=0.0 to Z=20.7).
12. Finish turn diameter Ø37.3 mm over length 15.2 mm (from Z=0.0 to Z=15.2).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø56.3 mm and length at least 173.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.3 mm over length 20.7 mm (from Z=0.0 to Z=20.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø54.3 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 Ø38.5 mm over length 28.4 mm (from Z=0.0 to Z=148.2).
10. Finish turn diameter Ø30.0 mm over length 119.8 mm (from Z=0.0 to Z=119.8).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 262.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 193.4 mm (from Z=0.0 to Z=193.4).
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 64.5 mm (from Z=0.0 to Z=64.5).
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 C45) with diameter at least Ø65.2 mm and length at least 303.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø63.2 mm over length 45.4 mm (from Z=0.0 to Z=45.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø63.2 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø54.6 mm over length 142.7 mm (from Z=0.0 to Z=253.3).
10. Finish turn diameter Ø40.7 mm over length 50.5 mm (from Z=0.0 to Z=110.6).
11. Finish turn diameter Ø32.0 mm over length 22.8 mm (from Z=0.0 to Z=60.1).
12. Finish turn diameter Ø30.0 mm over length 37.3 mm (from Z=0.0 to Z=37.3).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.5 mm and length at least 70.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.5 mm over length 12.5 mm (from Z=0.0 to Z=12.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.5 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø30.0 mm over length 52.6 mm (from Z=0.0 to Z=52.6).
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 Ø55.9 mm and length at least 281.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø53.9 mm over length 55.8 mm (from Z=0.0 to Z=55.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø53.9 mm.
6. Face the end and set Z=0.
7. 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 Ø41.9 mm over length 24.3 mm (from Z=0.0 to Z=220.2).
10. Finish turn diameter Ø30.0 mm over length 195.9 mm (from Z=0.0 to Z=195.9).
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 Ø58.8 mm and length at least 156.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø56.8 mm over length 19.5 mm (from Z=0.0 to Z=19.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø56.8 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 Ø47.3 mm over length 55.9 mm (from Z=0.0 to Z=131.8).
9. Finish turn diameter Ø30.0 mm over length 75.9 mm (from Z=0.0 to Z=75.9).
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 Ø32.5 mm and length at least 157.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.5 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 Ø30.5 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 138.9 mm (from Z=0.0 to Z=138.9).
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 16MnCr5) with diameter at least Ø44.0 mm and length at least 311.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø42.0 mm over length 19.1 mm (from Z=0.0 to Z=19.1).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø42.0 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 50.4 mm (from Z=0.0 to Z=287.3).
10. Finish turn diameter Ø30.0 mm over length 236.9 mm (from Z=0.0 to Z=236.9).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø80.5 mm and length at least 116.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.5 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 Ø78.5 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø64.7 mm over length 28.1 mm (from Z=0.0 to Z=106.7).
9. Finish turn diameter Ø52.3 mm over length 24.8 mm (from Z=0.0 to Z=78.6).
10. Finish turn diameter Ø43.4 mm over length 5.0 mm (from Z=0.0 to Z=53.8).
11. Finish turn diameter Ø35.2 mm over length 24.4 mm (from Z=0.0 to Z=48.8).
12. Finish turn diameter Ø30.0 mm over length 24.4 mm (from Z=0.0 to Z=24.4).
13. Break all edges (e.g., 2×45° where applicable).
14. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø70.7 mm and length at least 253.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø68.7 mm over length 47.9 mm (from Z=0.0 to Z=47.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø68.7 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 Ø62.5 mm over length 27.1 mm (from Z=0.0 to Z=200.6).
10. Finish turn diameter Ø42.8 mm over length 27.2 mm (from Z=0.0 to Z=173.5).
11. Finish turn diameter Ø30.4 mm over length 69.0 mm (from Z=0.0 to Z=146.3).
12. Finish turn diameter Ø30.0 mm over length 77.3 mm (from Z=0.0 to Z=77.3).
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 C45) with diameter at least Ø72.4 mm and length at least 82.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø70.4 mm over length 22.7 mm (from Z=0.0 to Z=22.7).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø70.4 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 Ø67.2 mm over length 6.7 mm (from Z=0.0 to Z=54.3).
9. Finish turn diameter Ø54.1 mm over length 14.1 mm (from Z=0.0 to Z=47.6).
10. Finish turn diameter Ø36.5 mm over length 7.9 mm (from Z=0.0 to Z=33.5).
11. Finish turn diameter Ø32.7 mm over length 20.6 mm (from Z=0.0 to Z=25.6).
12. Finish turn diameter Ø30.0 mm over length 5.0 mm (from Z=0.0 to Z=5.0).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø75.2 mm and length at least 197.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø73.2 mm over length 65.7 mm (from Z=0.0 to Z=65.7).
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. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø57.7 mm over length 63.4 mm (from Z=0.0 to Z=126.5).
10. Finish turn diameter Ø44.4 mm over length 41.6 mm (from Z=0.0 to Z=63.1).
11. Finish turn diameter Ø40.4 mm over length 21.5 mm (from Z=0.0 to Z=21.5).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø32.0 mm and length at least 289.3 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 220.2 mm (from Z=0.0 to Z=220.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø28.7 mm over length 64.1 mm (from Z=0.0 to Z=64.1).
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 Ø68.0 mm and length at least 150.3 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.0 mm over length 20.4 mm (from Z=0.0 to Z=20.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø66.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø53.6 mm over length 34.2 mm (from Z=0.0 to Z=124.9).
9. Finish turn diameter Ø35.7 mm over length 22.2 mm (from Z=0.0 to Z=90.7).
10. Finish turn diameter Ø30.0 mm over length 68.5 mm (from Z=0.0 to Z=68.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø59.5 mm and length at least 181.7 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.5 mm over length 48.6 mm (from Z=0.0 to Z=48.6).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø57.5 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø43.9 mm over length 29.7 mm (from Z=0.0 to Z=128.1).
10. Finish turn diameter Ø30.0 mm over length 98.4 mm (from Z=0.0 to Z=98.4).
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 Ø32.0 mm and length at least 223.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 188.9 mm (from Z=0.0 to Z=188.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø29.8 mm over length 29.5 mm (from Z=0.0 to Z=29.5).
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 Ø77.8 mm and length at least 317.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø75.8 mm over length 125.0 mm (from Z=0.0 to Z=125.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø75.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø57.9 mm over length 104.0 mm (from Z=0.0 to Z=187.0).
10. Finish turn diameter Ø43.7 mm over length 83.0 mm (from Z=0.0 to Z=83.0).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø56.9 mm and length at least 192.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø54.9 mm over length 46.8 mm (from Z=0.0 to Z=46.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø54.9 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø51.6 mm over length 67.9 mm (from Z=0.0 to Z=140.2).
9. Finish turn diameter Ø34.4 mm over length 27.9 mm (from Z=0.0 to Z=72.3).
10. Finish turn diameter Ø30.0 mm over length 44.4 mm (from Z=0.0 to Z=44.4).
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 aluminium alloy round bar (material EN AW-6082) with diameter at least Ø32.0 mm and length at least 204.7 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 166.3 mm (from Z=0.0 to Z=166.3).
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 Ø23.4 mm over length 33.4 mm (from Z=0.0 to Z=33.4).
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 Ø80.4 mm and length at least 242.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø78.4 mm over length 94.6 mm (from Z=0.0 to Z=94.6).
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 Ø60.9 mm over length 52.4 mm (from Z=0.0 to Z=142.9).
10. Finish turn diameter Ø41.9 mm over length 90.5 mm (from Z=0.0 to Z=90.5).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 42CrMo4) with diameter at least Ø32.0 mm and length at least 110.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 92.4 mm (from Z=0.0 to Z=92.4).
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 Ø29.0 mm over length 13.4 mm (from Z=0.0 to Z=13.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø61.3 mm and length at least 84.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.3 mm over length 6.9 mm (from Z=0.0 to Z=6.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.3 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 Ø51.2 mm over length 20.9 mm (from Z=0.0 to Z=72.5).
9. Finish turn diameter Ø34.9 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 C45) with diameter at least Ø63.9 mm and length at least 245.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø61.9 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 Ø61.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø57.1 mm over length 55.9 mm (from Z=0.0 to Z=184.3).
10. Finish turn diameter Ø47.3 mm over length 42.0 mm (from Z=0.0 to Z=128.4).
11. Finish turn diameter Ø35.9 mm over length 51.4 mm (from Z=0.0 to Z=86.4).
12. Finish turn diameter Ø30.0 mm over length 35.0 mm (from Z=0.0 to Z=35.0).
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 Ø64.2 mm and length at least 137.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø62.2 mm over length 19.5 mm (from Z=0.0 to Z=19.5).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø62.2 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 Ø55.3 mm over length 13.9 mm (from Z=0.0 to Z=113.4).
9. Finish turn diameter Ø36.0 mm over length 21.0 mm (from Z=0.0 to Z=99.5).
10. Finish turn diameter Ø31.8 mm over length 13.9 mm (from Z=0.0 to Z=78.5).
11. Finish turn diameter Ø30.0 mm over length 64.6 mm (from Z=0.0 to Z=64.6).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø38.5 mm and length at least 207.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø36.5 mm over length 44.4 mm (from Z=0.0 to Z=44.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø36.5 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 158.5 mm (from Z=0.0 to Z=158.5).
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 C45) with diameter at least Ø51.2 mm and length at least 142.6 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø49.2 mm over length 53.8 mm (from Z=0.0 to Z=53.8).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø49.2 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 Ø31.6 mm over length 27.1 mm (from Z=0.0 to Z=83.8).
9. Finish turn diameter Ø30.0 mm over length 56.7 mm (from Z=0.0 to Z=56.7).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø76.7 mm and length at least 191.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø74.7 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 Ø74.7 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 Ø59.3 mm over length 35.7 mm (from Z=0.0 to Z=169.6).
9. Finish turn diameter Ø45.9 mm over length 40.2 mm (from Z=0.0 to Z=133.9).
10. Finish turn diameter Ø34.0 mm over length 19.1 mm (from Z=0.0 to Z=93.7).
11. Finish turn diameter Ø30.0 mm over length 74.6 mm (from Z=0.0 to Z=74.6).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø71.1 mm and length at least 269.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø69.1 mm over length 75.3 mm (from Z=0.0 to Z=75.3).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø69.1 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 Ø52.0 mm over length 56.8 mm (from Z=0.0 to Z=188.8).
10. Finish turn diameter Ø41.9 mm over length 51.9 mm (from Z=0.0 to Z=132.0).
11. Finish turn diameter Ø30.0 mm over length 80.1 mm (from Z=0.0 to Z=80.1).
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 Ø32.0 mm and length at least 72.5 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø30.0 mm over length 40.9 mm (from Z=0.0 to Z=40.9).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø30.0 mm.
6. Face the end and set Z=0.
7. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
8. Finish turn diameter Ø22.0 mm over length 26.6 mm (from Z=0.0 to Z=26.6).
9. Break all edges (e.g., 2×45° where applicable).
10. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a steel round bar (material 16MnCr5) with diameter at least Ø35.0 mm and length at least 318.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø33.0 mm over length 64.2 mm (from Z=0.0 to Z=64.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø33.0 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 249.2 mm (from Z=0.0 to Z=249.2).
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 Ø36.8 mm and length at least 251.2 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø34.8 mm over length 105.0 mm (from Z=0.0 to Z=105.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø34.8 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø30.0 mm over length 141.2 mm (from Z=0.0 to Z=141.2).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø62.8 mm and length at least 273.9 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø60.8 mm over length 43.8 mm (from Z=0.0 to Z=43.8).
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. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø44.1 mm over length 30.8 mm (from Z=0.0 to Z=225.1).
10. Finish turn diameter Ø30.0 mm over length 194.3 mm (from Z=0.0 to Z=194.3).
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 Ø68.2 mm and length at least 236.4 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø66.2 mm over length 30.0 mm (from Z=0.0 to Z=30.0).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø66.2 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 Ø54.5 mm over length 78.8 mm (from Z=0.0 to Z=201.4).
10. Finish turn diameter Ø49.9 mm over length 74.6 mm (from Z=0.0 to Z=122.6).
11. Finish turn diameter Ø44.8 mm over length 48.0 mm (from Z=0.0 to Z=48.0).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø61.9 mm and length at least 288.0 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø59.9 mm over length 20.4 mm (from Z=0.0 to Z=20.4).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø59.9 mm.
6. Face the end and set Z=0.
7. Center-drill the free end and support the bar with tail support.
8. Rough turn the remaining outer surfaces leaving ~0.5–1.0 mm stock per side for finishing.
9. Finish turn diameter Ø54.8 mm over length 119.7 mm (from Z=0.0 to Z=262.6).
10. Finish turn diameter Ø37.6 mm over length 110.3 mm (from Z=0.0 to Z=142.9).
11. Finish turn diameter Ø32.2 mm over length 32.6 mm (from Z=0.0 to Z=32.6).
12. Break all edges (e.g., 2×45° where applicable).
13. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø47.4 mm and length at least 76.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø45.4 mm over length 12.0 mm (from Z=0.0 to Z=12.0).
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 Ø36.9 mm over length 18.4 mm (from Z=0.0 to Z=59.8).
9. Finish turn diameter Ø30.4 mm over length 41.4 mm (from Z=0.0 to Z=41.4).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a stainless steel round bar (material 1.4301) with diameter at least Ø47.6 mm and length at least 246.8 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø45.6 mm over length 33.2 mm (from Z=0.0 to Z=33.2).
5. Mount the bar in a three-jaw chuck by the holding diameter Ø45.6 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 Ø36.9 mm over length 54.3 mm (from Z=0.0 to Z=208.6).
10. Finish turn diameter Ø30.0 mm over length 154.3 mm (from Z=0.0 to Z=154.3).
11. Break all edges (e.g., 2×45° where applicable).
12. Remove the workpiece from the lathe.


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

[Assistant]
1. Select a aluminium alloy round bar (material EN AW-6082) with diameter at least Ø59.2 mm and length at least 283.1 mm to allow machining allowances.
2. Mount the bar in a three-jaw chuck.
3. Face the end.
4. Finish turn the holding diameter Ø57.2 mm over length 32.1 mm (from Z=0.0 to Z=32.1).
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. 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 63.2 mm (from Z=0.0 to Z=246.0).
10. Finish turn diameter Ø41.3 mm over length 89.9 mm (from Z=0.0 to Z=182.8).
11. Finish turn diameter Ø30.0 mm over length 92.9 mm (from Z=0.0 to Z=92.9).
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 Ø32.0 mm and length at least 169.5 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 141.0 mm (from Z=0.0 to Z=141.0).
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 Ø25.4 mm over length 23.5 mm (from Z=0.0 to Z=23.5).
10. Break all edges (e.g., 2×45° where applicable).
11. Remove the workpiece from the lathe.