Milwaukee M12 Battery

thingiverse

Update on 1/11/18: Files refreshed for improved routing. Simplified design eliminates unnecessary brim requirements. Clips on top are reinforced with a screw in the center for enhanced stability and holding power. Print settings include a .2mm layer height, 20% infill, resulting in a sturdy finish. A brim was used only on part A to ensure secure attachment. The device accommodates protected 18650 batteries but may experience tight or loose fits depending on cell type. Users can adjust the battery size by modifying the slicer settings. Solid copper wire is recommended for optimal performance. While 22AWG wire is currently available, 20AWG could also work effectively. Wire wrapping is a viable option, but the main connector requires further development. Melted wire was used in the plastic, although alternative methods are likely more efficient. Edit: A 10K thermal resistor must be connected to the negative terminal of the 3B pin (labelled T on the original design). This modification is described in comments by Sneezy3D. The other two pins require 10K resistors as well. The recommended resistors are 1/16W and should be inserted vertically, with their leads serving as contacts.