No pictures. They were on eBay. Looked fairly simple, just a hefty slide 
mounted between the head and where it attaches to the nodding joint. Would 
certainly require less power than using the knee for the CNC Z axis.

On Thu, 7/11/13, Stuart Stevenson <[email protected]> wrote:

 Subject: Re: [Emc-users] Buying used servos
 To: "Enhanced Machine Controller (EMC)" <[email protected]>
 Date: Thursday, July 11, 2013, 5:51 AM
 
 Sweet - I've never seen one. Do you
 have a picture?
 On Jul 11, 2013 1:25 AM, "Gregg Eshelman" <[email protected]>
 wrote:
 
 > I've seen pics of a couple of Bridgeport style CNC
 mills where the Z axis
 > is a slide inserted between the head and the turret so
 the entire head
 > moves up and down. That can have greater travel than
 moving the quill and
 > the head retains all its manual functions.


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