Fully-printable, snap-together, semi-auto elastic band gun

Last crawled date: 5 years, 6 months ago

This design is fully printable and snap together. It is also easily scaled because it does not depend on any hardware (eg. springs, screws). Has a clip for storing extra elastic bands and a functional trigger safety. The clip ejects with the small button beneath the trigger, and an optional clip retainer pin can be added to prevent the clip from coming out of the gun completely (and getting lost). The shaft of the starwheel should be a good fit but turn without resistance, depending on your printer/settings a small amount of filing might be required. Prints good in PLA at 15% infill with 3 walls and it is plenty strong, ~86g plastic to print. All parts print flat (rotate as shown) but rotate the rear clip 33deg to sit flat. I wanted a design easy and quick to make for gifts and this works well.