Quote Originally Posted by hardenum View Post
I did a mockup of this design and I had concerns about the depth of cut. It does solve the Z axis problem you mentioned.
Why did you have concerns about DOC.? It doesn't get any better than with this design for a machine with a larger cutting area as the Z extension is never any longer than the tool length, and that is at any Z height.
Some of the largest Gantry mills in the world use this exact design. If you build it strong enough the only limit on DOC will be spindle power.