Many guitar string winders have appeared before, but I found them all lacking, so when my son asked me to print him one, I designed one for him from scratch. And here it is. It works, it's robust to use long-term and it's simple to print. All you'll need is a 15mm M5 bolt and nyloc nut to join the two parts.
guitar_string_winder_body.stl | 14.1KB | |
guitar_string_winder_both.stl | 105.2KB | |
guitar_string_winder_handle.stl | 72.7KB |