Wow, what a day!
After playing with a few ideas, mounting the Pi to the back and the Fates PCB to the front (with nuts and washers on the encoders and screws around the top edge of the board inside the case) came out on top. In theory, this will allow the case to be split along the Pi header.
While just using the friction of the header might be enough, I hacked together an internal bracket that can be used to secure the two halves together with 5 additional screws through the back. I don’t really like having a third piece, but there are really only two straight shots through the inside of the case that pass through holes in the Fates PCB.
This means the assembly order will be:
- Fates screws to the bracket with 3 screws
- Fates screws to the top half of the case with 5 screws (one passing through the bracket), and using 3-4 nuts+washers on the encoders
- Pi screws to the bottom half of the case in 4 spots
- Top half and bottom half mesh together with the Pi header, and 5 screws through the bottom of the case and into the bracket.
A bit of a mess, honestly. I’m guessing the internal bracket will just be a nicety and could be left out, but Fusion 360 is fun so it was fun to see how far I could take it.
Once I validate the design works, I’ll upload the STL files and the modified Fusion 360 f3d file.
Let me know if you have other changes you’d like to see and I’ll see if I can get to them!
And, again, thank you so much to everyone that contributed to the original case design as well as posting the files. I’ve had a blast working on this so far!