48 AA Battery Holder - Rugged Box

thingiverse

## Details Modified the [Parametric Rugged Box](https://www.thingiverse.com/thing:4757317) by [TheSameNameTwice](https://www.thingiverse.com/TheSameNameTwice) to hold 48 AA batteries. They have an AA holder as well but it holds fewer batteries and isn't staggered. I chose 48 because that's the size of AmazonBasics AA batteries I usually purchase. Note that I also modified the original [Parametric Rugged Box](https://www.thingiverse.com/thing:4757317)'s hinge mechanism to make it easier to install whilst maintaining the rigidity. Also trimmed down the locking mechanism so it doesn't feel like it'll break every time I close the box. I added a file **aa_sample.stl** that has a few AA holes that I recommend testing with to make sure your AA's will fit into the holes in the box. I've found that some AA batteries are a little thicker than others for whatever reason. ## Related See my [AAA battery holder](https://www.thingiverse.com/thing:4921753) as well! ## Printing Nothing should need supports. Make sure you're printing the bottom part, bottom side against the build plate, and the top part, top side against the build plate. I printed with a 0.2mm layer height with 15% gyroid infill, came out more than strong enough. I used Prusament Galaxy Silver PLA on my Prusa i3 MK3S+ printer. ------- What I used: > Software: PrusaSlicer 2.3.0 > Printer Used: Prusa i3 MK3S+ > Supports: No > Adhesion: Skirt > Layer Height: 0.2mm > Infill: 15% Gyroid > Filament Used: PLA Galaxy Silver by Prusament ## How I Designed This I wanted mine to be more dense than the current remix for the original [Parametric Rugged Box](https://www.thingiverse.com/thing:4757317) so I went down a rabbit hole looking for the densest organization of circles within a rectangle. Ended up finding [Packomania](http://www.packomania.com/) which gave me the exact coordinates to place each circle at. Navigate to **Circles in rectangles with variable aspect ratio** and choose **48** to see the layout. Pretty interesting stuff.