Black And Decker 20v battery Adapter

thingiverse

My lipos were dying from being abused, so I figured there wasn't much difference in a drill battery. I made this to use in my small robots and it works for most batteries in the Black & Decker line of 20-volt max tools. It should also work with the Craftsman bolt-on series batteries. Print Settings Rafts: Doesn't Matter Supports: No Resolution: .3 Infill: 15 Notes: I print at .3 because I'm impatient; it should work well at whatever resolution you decide to use. Post-Printing You'll need to heat up the pieces of metal used for contacts, making sure they're about 1.5 cm long, and then push them through the thin slits in the model. Once they're through, there will likely be a coating of plastic on the contacts; it took me a while to figure out why I wasn't getting anything from the battery. So you'll need to burn off the plastic with a torch or lighter and then reinsert them while cold. After that, reheat them to get the plastic to adhere. For this step, I used a soldering iron and a piece of plastic and basically soldered/welded the contacts in. Then just solder leads on and screw the pieces together using 2 M3x20 screws; that's what I used. The plastic should be strong enough to hold the screws without too much trouble.