Ammo Box Battery Tray Organizer

prusaprinters

<p>I have a couple dozen LiPo battery packs that I use for my many FPV drones. I keep them all in a metal ammunition box so if they catch on fire it will be contained.&nbsp;</p><p>***please note that I've gotten a lot of comments on a Reddit post that it's a bad idea to keep all of these packs together. I take good care of my packs, balance storage charge them after each flight, get rid of them if/when they develop a questionable cell, and keep this box in a garage with high ceilings on the concrete floor. The box has a large vent hole so a fire will burn but contained and not explode the box due to a tight seal. Therefore, please do not provide your advice on LiPo storage to me - thank you!</p><p>The design is in four parts - two plates that level out the bottom of the box (not critical but I thought it would be a fun touch) and two trays; each set of two parts interconnect using T-slots to make two large pieces that sit down in the box. This is designed for my exact number of packs and dimensions, but you can easily take the .stl and change the layout for different sizes or quantities (or completely different items altogether). There are a few extra spots that I'm not using but didn't want to waste the space. As far as I know, ammo cans are of a standard size and shape, so this should work in any box. This specific one is from Harbor Freight.</p><p>Here are my pack details:</p><ul><li>(5) RDQ Series 6S 1,250mAh</li><li>(2) Xilo 6S 1,250mAh</li><li>(3) RDQ Series 3S 1,100mAh</li><li>(5) RDQ Series 3S 450mAh</li><li>(2) RDQ Series 3S 650mAh</li><li>(4) RDQ Series 1S 525mAh</li><li>(3) BetaFPV 1S 450mAh</li><li>(6) RDQ Series 1S 300mAh</li></ul><p>Note that the tall tray has a large cutout in it to accommodate the vent hole I drilled in my box, you may want to remove this if not needed for your use case.</p><p>I printed all parts at 0.25mm layer height using Galaxy Black Prusament on my Mini+ with the powdercoated textured sheet. I printed the bottom plates in PETG but then ran out of PETG so printed the trays in PLA. I have included .gcode for my exact prints but I'm sure most of you will use a single material for everything so I have include the .3mf files as well. Please review all .3mf setting changes I made before printing as I have a 1.05 extrusion modifier on my PLA that you may not need.</p><p>I hope you enjoy it, and if you're using it for drone batteries like me, happy flying!&nbsp;</p>