Unfortunately I did not start a design thread, so I will just summarize the design here before getting into the build details. Since I'm already building there is probably not a lot of room for changes, but I am always happy to receive constructive criticism that I can apply to the next version of the machine.
Here are the major components, with the wood frame design as seen in the attached images of my model. I am using Fusion 360 for the modeling and design simulations. I'm very impressed with the capabilities of Fusion 360, being that it is free for hobby use. I do run into quite a few bugs, but I can't complain for the price I'm paying! Also, they are continuously improving, rolling out updates all the time and they personally respond in a timely manner to inquiries on their support forums.
- HIWIN HGR15 linear profile rails (X=1200mm, Y=800mm, Z=350mm)
- HIWIN HGH15CAZAH bearing blocks on Y axis
- HIWIN HGW15CCZAH bearing blocks on X and Z axis
- Ballscrews: 1204 on Z Axis, 1610 on X and Y axis
- BK/BF10/12 supports for all screws
- NEMA23 381 oz-in stepper motors (4 total, 2 on X-axis)
- Gecko G540 stepper drivers
- 48 vdc power supply
- Mounts for DeWalt DWP611 (shown) and DW618 routers
- Linux CNC
All of the frame components and the base use a torsion box design and will be made with birch plywood with MDF webs.