Rear Chuck

[RSB-Refugee]

I imagine that the work should be nicely centered, but perhaps the bore would not be parallel. Of course it's just a hole as opposed to a fit, so non-parallel sides should not matter.

I think what you are saying is 'it's just a hole, why worry about it being centered?' At first your comment made sense, but I got to thinking, if it is not centered, it would be poorly balanced. Poor balance leads to vibration, which in turn leads to chatter.

Tracy

 

[DaveK]

I think what you are saying is 'it's just a hole, why worry about it being centered?' At first your comment made sense, but I got to thinking, if it is not centered, it would be poorly balanced. Poor balance leads to vibration, which in turn leads to chatter.

Tracy

Good point Tracy, I had not thought about the chucks balance. But I believe that the hole would be centered, just possibly a bit tapered.

Dave

 

[Tommy-D]

> When installing a rear chuck on a lathe,how do you get it to run concentric with the front,and how much runout is acceptable here? Does the weight of a full sized chuck cause problems here,such as the spindle flexing from the barbell effect of having a heavy chuck on each end? How big should it be,and how big should an adapter be for safety reasons? Are there pitfalls to using a merely threaded sleeve,something that can be solved by locking pins/set screws mounted crosswise? Can the spindle be removed and mounted in another lathe to internally thread it,and what thread size should be used? Is there a specific distance that works best for rigidity/accuracy? On the Deluxe Cuesmith,how do you true the back chuck,and is it really neccessary? Tommy D.

 

[cueman]

> When installing a rear chuck on a lathe,how do you get it to run concentric with the front,and how much runout is acceptable here? Does the weight of a full sized chuck cause problems here,such as the spindle flexing from the barbell effect of having a heavy chuck on each end? How big should it be,and how big should an adapter be for safety reasons? Are there pitfalls to using a merely threaded sleeve,something that can be solved by locking pins/set screws mounted crosswise? Can the spindle be removed and mounted in another lathe to internally thread it,and what thread size should be used? Is there a specific distance that works best for rigidity/accuracy? On the Deluxe Cuesmith,how do you true the back chuck,and is it really neccessary? Tommy D.

When you get ready to true your jaws up on a Cue Smith call me so I can clearly explain how to do it.
Chris
www.cuesmith.com
www.internationalcuemakers.com