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

thingiverse

This design prints perfectly and comes together seamlessly. It's also incredibly versatile, as it can be scaled up or down without relying on any hardware components like springs or screws. The clip is designed with a thoughtful touch, featuring a button that allows you to easily eject the extra elastic bands for storage. An optional retainer pin can be added to prevent the clip from coming loose and getting lost. The starwheel's shaft should fit snugly but turn smoothly, though some light filing might be necessary depending on your printer settings. Printing with PLA at 15% infill and three walls yields a sturdy result, weighing around 86 grams of plastic. Each part prints flat, with the rear clip requiring a 33-degree rotation to sit perfectly level. I designed this model with ease and speed in mind, making it an ideal choice for gifts that can be quickly printed.