C Battery Tray for 16 Batteries

I wanted a simple C battery holder, since I still have a few things that need C batteries. Most holders are for other battery sizes (or more than one size), so I figured I'd get some CAD practice and make one.

This does not hold batteries tightly, but just keeps them together. It is meant to sit on a shelf or in a drawer, and use minimal plastic and print time for the size – 32g / 10.7 meters, and just over 3 hours for me. 0.2 mm layer height should be fine.