Advanced Search

Well that's frustrating -- found this thread, got excited, read it to the end, and... crickets. :-/

What happened?

I assume you can't just change the Z0 location as you need the Z/Y to be zero'ed with the 4th axis center of rotation.  Otherwise you could probe the top of the part stock and use "G10 L2 P1 Z0" to set a new Z0 offset.

If that's the case you can try putting a stock stop in your collet block.  The collet and nut will change Z-position when you tighten, but the part should remain (mostly) stationary... much like a lathe stock stop attached to the spindle (and not the collet).

Kind of a poor-man's dead-length collet system.

What kind of shaft couplers are you using, and how is (was) the motor connected/aligned to the ballscrew?