Re: [Emc-users] Maybe a minimally printed harmonic drive?

[John Dammeyer]

> From: Sam Sokolik [mailto:samco...@gmail.com]
> http://electronicsam.com/images/greenmachine/IMG_20210321_133551.jpg
> 

So Sam,
What's the diameter of the faceplate?  
And are you planning on mounting a chuck onto it?  

If so, all the front mount ones still need some sort of registration groove on 
the inner diameter of the mounting screws.  

Andy Pugh created a faceplate for his Harmonic drive that had camlock chuck 
capability.  This way he could move his 3 or 4 jaw chuck from the lathe to the 
4th axis on the mill.  

In my case I have a South Bend Heavy 10L with the threaded spindle.  Short of 
modifying it with some sort of locking nut or pin to prevent reverse rotation 
off the threads, I'm not sure putting a threaded nose onto a 4th axis is a good 
idea.

A smaller chuck on a faceplate that is threaded for the South bend but has 
screws and a registration groove for the 4th axis seems like an idea that might 
work.  I have 3" chucks for the Gingery Lathe but they are on 16 TPI threaded 
arbors.

John Dammeyer




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