so, I managed to get this finished, but somewhere along the line, i totally screwed up the dimensions/ drilling guide. In the end, I just drilled and cut out big holes by hand, so everything except the pisound board holes on the top of the box came out screwy.
Drilling guide attached (pdf and ai), but it is not accurate for the side measurements. if you must use this to drill, use the enclosure top guide only.
I had to use slightly shorter standoffs as well. the large hole you see below allows the rpi3 onboard wifi signal to radiate out of the box too, which is cool.
Overall, i would say there is a nice potential for a robust utilitarian enclosure here, but it would need to be professionally cut. it’s very hard to drill these boxes accurately by hand.
image shows boxed pisound on the left and a matching custom teensy midi controller in the background.
pisound_hammond.zip (430.6 KB)