AAA to AA battery adapter
thingiverse
This is an adapter that converts a AAA battery into a AA, To create it, print the object ideally using a material that has a bit of flexibility, although PLA will work too. To use it slot the battery into the adapter, then put some metal into the little hole. We just jam some tin foil in there and it works fine. Please feel free to check out my blog www.callemarlabs.com for similar posts.
Download Model from thingiverse
With this file you will be able to print AAA to AA battery adapter with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on AAA to AA battery adapter.