AA battery dispenser

A single-part printable model with no support requirements, which holds 16 AA size batteries in a compact arrangement.
I have tried many other battery dispensers like this, and this one suffers from none of the problems I have seen elsewhere.
- A 2.5mm clearance on every side of the battery guarantees smooth movement and zero sticking.
- Secure retention of the last battery, with no sliding out the sides.
- Single piece construction
- Only one bridging point, which most printers will sail over without problem.
- No stringing - even with wet filament, there are no points in the print where the filament needs to be retracted, or the printing needs to be stopped.