There are already many good rubber band gun designs available here, but I wanted to give it my own spin.
My pistol is smaller and simpler than most other models. It only consists of 3 parts that are easy to print and don’t require support. With the new Prusa Input Shaping profiles, the complete gun prints in 53 minutes.
After printing, place the trigger into the frame and glue the cover to the frame. Apply the glue sparingly so it is not leaking into the mechanism.
As ammunition, use small rubber bands with Ø15mm or so. These are usually the smallest ones available at office supplies stores. Rainbow Loom bands work too.
The mechanism for the gun was inspired by this model:
https://www.printables.com/model/166472-mini-rubber-band-gun
Recommended Print Settings:
Update November 2nd, 2023:
Uploaded STEP files.
The author marked this model as their own original creation.