I got sent a cool project idea the other day and decided to make one. I'm not that good at making my soldering work look nice so I designed a case to hide it :D

Printed in Sunlu transparent purple PETG for that nice retro look.

If you decide to make this you will need:

• 40x60mm prototyping board 
  • It will need to have M2 mounting holes roughly 1mm in from the corners. I used one of these because it matched the ones in the original post best, no guarantees about any others.
• 4x M3x16 screws to screw the two case halves together
  • Make sure the screw head fits inside the cutout! Or download the STEP files and modify it yourself.
• 4x M3x5mm heat set inserts 
  • these go in the top case
• 4x M2x12mm standoffs 
  • I used two 6mm ones each because that's what I had
• 10x M2x4mm screws
  4x M2 washers
  • Four for fastening the prototyping board to the standoffs
  • Four with washers for fastening the screen to the case front (these should probably be M2.5 judging by the holes in the screen PCB)
  • Two for fastening the battery charging board cover/retainer

Features include:

• no support needed for anything
• hole on the side to mount a cool flip switch 
  • Not in the original schematic
  • Pro tip: put the switch between the charging board positive and the microcontroller/screen VCC pins instead of between the battery and the charging board so you can charge the thing while it's off)
• Friction fit for the charging board with a little printed retainer plate that doubles as protection for the power contacts

Tips:

• Check the alignment of the buttons before you solder! They will only fit with the lets pointing out horizontally in a specific position. I unfortunately didn't take pics of it and I'm too lazy to open it again 🙃