ARDUINO UNO BOX

thingiverse

You'll need a simple Arduino Uno case that requires 4 M3x20 screws, though nuts are optional. The top box can be mounted using only these screws. I've tested this with a clone Arduino and found it fits snugly, requiring just a little force to secure - not so much that the board might get damaged. Since the reset button is quite small, consider printing it along with the bottom box or ensuring the fans are 100% operational.