V2.0 3D Model Continued, Theory Tested

I found some time this weekend to continue the development of my new and improved V2.0 CNC machine. Unfortunately, with my current machine I am unable to cut some of the pieces of V2.0 so I had to divide those pieces into smaller pieces that my current machine can handle. Check it out! Let me know what you think!

I used my existing CNC machine to cut out one of the bearing pieces to see how my machine does and see how the bearing concept works. It actually turned out fairly well. There is some play in the bearings however I think that I can adjust the bearings to eliminate the play. So far so good!

Backlash Fixed! Conceptual 3D model Started

I fixed the backlash in my v1.0 machine. It turned out to be as simple as adding another bolt to my lead screw nut to keep the nut from turning while applying a force to it. I re-cut the test pattern and my machine seems to have no more backlash, well at least no significant backlash.

So, I started drawing up the 3D model of my next machine. This design will be significantly more rigid by using the 3/8" steel V groove bearings and aluminum or steel extrusions for the rails. Check out the Z and Y axes:

I am having trouble figuring out how to support the ends of the Y axis. Any Ideas?