Rubber Band Minigun
thingiverse
Full-auto, rapid-fire rubber band minigun with 20 round magazine the runs on AAA batteries and shoots very reliably. Mostly snap-fit assembly. Extra parts needed only for full-auto feature. No extra parts or hardware needed for manual operation however I recommend using bearings for mounting the shaft. You could probably print bushings instead if you don't have bearings. Assembly video: https://www.youtube.com/watch?v=kMZFFGzZBas&t=12s Parts list for full-auto: -3 AAAs -3-6v 200 rpm geared dc motor, dual shaft (yellow box, very common) -Micro push switch, pcb style -20ish gauge copper wire (soldered connections highly recommended) -3pc cylinder style AAA battery holder -4 small screws -2 ball bearings (standard size buy from any skate shop)
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