Quote Originally Posted by Voicecoil View Post
An alternative could be to fix thick (>25mm) blocks of ali to the ends of the raised sides and screw your BK's into the edges of these? - that way you could have some adjustment. If you already have a working machine making them square shouldn't be too difficult.
Interesting idea. Problem is the ballscrew isn't long enough to allow the bearing blocks to reach each end of the raised sides...