Tony Baideme
Member
- Messages
- 1,100
- Location
- Honolulu, Hawaii
Sorry guys,
Bart, Vaughn, no offense, but I think you jumped to conclusions on this one. (although, I did ask for pictures to clarify things.) I can't figure how a solid spindle shaft would be used on a lathe. No way to drive the centers out, as Chuck said. There would have to be a slot in the shaft to use a taper drift.
Hey Chuck,
Glad to see you got that alright now. You must have cut off about 1 thread from the end of the spindle shaft. You still should have enough threads to hold a chuck or faceplate, right?
Sounds to me like either the internal taper was over-reamed when made, (is this a NEW lathe? I would have to go back to read again) or, (and I doubt very much this would happen) that the previous users did allow tooling to spin in the hole, (as in a drive center or a drill chuck) enlarging it to where it would not hold a tapered center. In my years of machining experience, I have found that slipping morse tapers usually gall both the taper of the tool and the bore. This may have happened and someone reamed it to clean it up, resulting in the splindle becoming oversized.
Aloha, Tony
Bart, Vaughn, no offense, but I think you jumped to conclusions on this one. (although, I did ask for pictures to clarify things.) I can't figure how a solid spindle shaft would be used on a lathe. No way to drive the centers out, as Chuck said. There would have to be a slot in the shaft to use a taper drift.
Hey Chuck,
Glad to see you got that alright now. You must have cut off about 1 thread from the end of the spindle shaft. You still should have enough threads to hold a chuck or faceplate, right?
Sounds to me like either the internal taper was over-reamed when made, (is this a NEW lathe? I would have to go back to read again) or, (and I doubt very much this would happen) that the previous users did allow tooling to spin in the hole, (as in a drive center or a drill chuck) enlarging it to where it would not hold a tapered center. In my years of machining experience, I have found that slipping morse tapers usually gall both the taper of the tool and the bore. This may have happened and someone reamed it to clean it up, resulting in the splindle becoming oversized.
Aloha, Tony