This is a battery cover that I threw together to replace one that broke on a no name card shuffler that I have. It could possibly work on a range of other electronics that run on two AA batteries. I printed it in PETG, 0.20 mm layers, no supports (although they could help). I found PLA too brittle for this application… the latch snapped off right away.

I used Sunoo's Lumierre Battery Cover as a starting point for this design.