It was pretty easy to make a PCB for the HID controller, and this is what I came up with...

Click image for larger version.  Name: cnc controller.png  Views: 822  Size: 22.7 KB  ID: 11878

I added extra pins for the unused Teensy pins and a few spare grounds, in case I want to add some features later on. I also tweaked the wiring from the default openGLCD to make the layout easier. I just need to get the motor rewiring finished before I can get on and make this PCB though.

Before I do that, I just want to finalize the front panel layout, so I can get the machining organized.