These things are both battery holders for storing AA and AAA batteries. The AA one holds 24 batteries and the AAA 32.
They are designed to be printed in spiral vase mode only. They are very fast to print and use very little filament (Less than 50 minutes and about 20gms)
It is important that these are printed with the following settings to get a successful print:
- Spiral Vase mode.
- Layer height 0.20mm (Including the first layer!).
- Base layers set to 4
- External perimeter width to 0.8mm.
These could be printed in any material, I code PLA.
Note: if you would like a custom sized version of this, either for different batteries or with different amounts, please ask in the comments and I will upload an additional version.