The file 'C Battery To D Battery Adapter 3D Printer Model' is (fcstd,stl) file type, size is 29.6KB.
I am using this adapter to use extra C batteries I have laying around in our baby swing which uses D batteries.
Plan is to use food aluminum foil to make a contact between positive terminals of battery and rely on using spring in battery holder to make a contact with negative terminal.
UPDATE 12/24/14: I have changed dimensions of positive side a bit, making it easier to keep foil in place.
C_to_D_adapter.fcstd | 10.9KB | |
C_to_D_adapter.stl | 97.0KB |