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These are battery holders that can hold (2) AA or (2) 14500.
I print these out of PETG for the toughness. My builds use a 0.6mm nozzle and 0.2mm layer height for the battery holder body, and 0.4mm nozzle with 0.2mm layer height for the lid.
These do require an extra screw for the hinge. I use a stock part from Mcmaster-Carr.
Some people have asked about metric screws. I think this metric screw from Mcmaster-Carr will work, but I have not tried it. It could require some drilling to get it to fit. Let me know if you give it a try!
The author marked this model as their own original creation.