Atari STM1 Ball Cover

thingiverse

Bought an STM1 with no mouse ball cover for cheapsies. There was no 3D model available anywhere for my particular variant, so I whipped one up in Tinkercad. It's made to fairly tight tolerances on the latching bits (and frankly, there's not much to work with so I included as much meat as possible). So you might need to sand it a bit here and there, but I think it works okay, so I guess it's good enough to share. Hatchbox Grey seems to match reasonably well. I used PLA, but something more resilient with better layer stick might not be a bad idea if you get the OCD itch about cleaning your mouse ball assembly frequently. Now go forth, and resurrect some old tech! Edit: as an aside, I've noticed that the original part looks a bit different from mine. This is because I had to reverse engineer it from my mouse, which had no flap. Honestly, I'm a bit surprised Atari didn't design theirs like this - to see what I mean, you'd have to take the mouse apart with the ball cover in place and look at the attachment points.