Mini Gun with Rainbow Loom Bands

thingiverse

Mini gun designed for rainbow loom bands. Gun will hold about 84 rounds. There are 12 posts on the barrel, and I can stack 7 bands on each post. One of each stl part will be required. Wrap some dental floss in the bands as you load them on. Besides the printed parts, you will need: Schedule 40 1" PVC pipe that is 4" long. Ends should be cut square as possible. 1/4" ready rod cut to length as needed(~6"). 3x 1/4" nuts (7/16" across flats). BBs for ball bearings(0.177"/4.5mm diameter). Bamboo skewers, cut 6x 3-3/4" long. You may need to sand down the ends to fit. 3'-4' of dental floss. A few drops of vegetable oil to lubricate bearings. Clean up bearing races for smoother operation. The cap may need to be sanded down for extra clearance. I also needed to scale the cap on the X and Y axis by 1.03 to make the threads fit when printing at 0.25mm/layer. Print Settings Printer: Printrbot Play Rafts: No Resolution: 0.25mm Infill: 33-70 Notes: Used supports touching build plate for StaticBarrelTip and StaticBarrelEnd.