My friend lost the battery cover for his UniTune clip, and asked me to make him a new one. I couldn't find any pre-designed models online, so I made my own. I decided to share it with the world because without the battery door, his tuner was rendered useless.

The battery cover should fit, I would recommend using a smaller nozzle so the screw hole comes out right.

I printed mine at 100% infill because it was so small, and it took about 10 minutes. PLA works great.