I changed it to take M3 locknuts to screw the case together, added a separate mounting bracket to mount the case and to clear the bottom for cooling when the box is used just sitting somewhere. Also made the box a bit larger on one side to create room for airflow from bottom to top.

I use mine to play music/stream spottify

http://www.pimusicbox.com/

Step file is included if you want to modify, make sure to keep enough holes for cooling.

If you use it with the mounting bracket you need 30mm m3 screws.

I printed mine with a 0.4 nozzle , 0.15 layer