Printable YoYo Stringmaker - Four Line

thingiverse

This is a printable kit for crafting yo-yo and spin top strings. It demands five M3 16 mm hex bolts and four nuts. There's an optional bearing version of each plate available if you have skateboard bearings handy, requiring just five of them. Print List * 5 Gears * 4 String Hooks * 1 Drive Axle * 1 Base Plate * 1 Mount Plate * 1 Hook Plate When assembling it, an extra hole allows you to screw in an M3 bolt and use the assembly as a brake to wind up the four strings into stranded rope. I used strong TPU for the hooks and axel, while printing the rest from PETG for mine. It's been suggested that making an additional gear and main axle is easy, allowing you to drive it from a drill with that gear chucked in instead of connecting directly to the main axle. Get twisting those strings!