Milwaukee M12 triple battery holder

thingiverse

Today, I acquired a Milwaukee m12 drill kit from Home Depot as part of a special promotion that included a two-pack of batteries free with the purchase of a $129 drill. I initially assumed there would be three batteries total, but it turns out the kit itself already had two installed. As a result, I now have one battery in the drill and three spares on hand. To manage these extra batteries effectively, I designed an end cap adapter that holds three batteries instead of just one. This project was completed using S3D software, where I printed it at 101% of its original size to ensure a perfect fit with the existing end cap. In hindsight, printing at 100% often results in tight-fitting parts for me, possibly due to my printer's specifications. However, I recommend printing at 101.5% if you're looking to achieve a more precise fit. As I'm using a 0.3mm nozzle, users with older models (0.4mm) may find it beneficial to increase the size by 2% to achieve better results. For those working with flexible materials like TPU, printing at 100% is usually sufficient. I opted for red PLA at a temperature of 210c and successfully printed the adapter without any supports required. The design also features a small hole on the back, allowing users to hang the mount on a wall if desired. Overall, I'm extremely pleased with how this project turned out.