I think i will have plenty of room; the top layer is very thick, the pins on the switches barely stick out, so i think i will have plenty of space.
The sides look thin but there isn't any flex whatsoever; they're very sturdy. i will mill out a bottom piece and probably put some rubber/grippy stuff on that, but it's TBD.
I saw your wood tests! They looked really good
![Smiley :)](https://cdn.geekhack.org/Smileys/solosmileys/smiley.gif)
I am not planning on milling wood keys; the precision isn't there for me yet, and i'm still figuring out a way to do two-sided cuts; i don't have limit or homing switches, but i could probably work something out with a jig.
I use a shapeoko (
www.shapeoko.com) which i've modified a bit.
I don't have many step by step pictures because there aren't many steps
![Wink ;)](https://cdn.geekhack.org/Smileys/solosmileys/wink.gif)
Model, CAM the model into toolpaths, wait for it to cut, and there you have it
![Smiley :)](https://cdn.geekhack.org/Smileys/solosmileys/smiley.gif)
Although right now i'm resizing almost all of the holes because they're all just a *hair* too small. Argh.