Small String Shooter

thingiverse

I'm showcasing a scaled-down version of my original string shooter, designed for portability and powered by batteries. This miniature model leverages motors and battery packs salvaged from an old airplane I purchased years ago at Harbor Freight. If you've also saved the motors and battery pack from the same plane, you can replicate this project using identical components. The aircraft in question is the Yellow Bee Rechargeable Radio Control Airplane, still available for purchase at Harbor Freight. To my surprise, I discovered a pair of rubber bands that fit perfectly onto the wheels - I'm not sure where I'd find replacements if one were to break. The laser-cut components are crafted from 0.20-inch thick plywood. The funnel is secured in place by six 32-screw threads, which I created using a tap on the 3D-printed part to accommodate the screw's thread. Upon closer inspection, the wiring appears more complex than it needs to be. The motors are connected in series with each other and a switch between them and the battery pack. Additionally, an optional connection allows for linking it to a wall outlet using a wall wart transformer. This string shooter was one of two models showcased at Maker Faire Bay Area 2019 meetups: Hack-a-Day Meetup and OSH Park Bringahack.