Quote Originally Posted by Kitwn View Post
If it's long, narrow bits of beech you have in mind, like guitar necks for example, then taking that entire fixed gantry and putting it on rails might let you build a machine with a very stiff Z axis, though you might need control software that can do auto-squaring on two axes at once.
Kit, that is next on the list. The design as been in the works for over a year but I keep scrapping it and starting again as I just can't make it work as I would like, but i think I've got it sussed now.

Edit: Oh and doesn't need dual-axis motor slaving as the screws are connected with belts and use just one motor.