3D printed shell for Makita LXT battery and variable power supply I've had a similar one of these portable power supplies for a while, and have found it surprisingly useful around the shop.
Parts needed:
Banana plug binding posts -- https://www.amazon.com/dp/B07D6KDWYP
Power supply -- https://www.amazon.com/dp/B07ZSGKTX5
Makita battery adapter -- https://www.amazon.com/dp/B086S47GZG
3D printed case (STL, STEP, and Fusion360 files provided in this repo)
I had to pop apart the battery adapter from Amazon, cut a hole in the blue part, and reroute some smaller wires through the hole instead of routing them out the side as in the original adapter. I tried to find open-source CAD for the adapter, and was not able to find it, so am just using the part from Amazon for now.