Fly Tying Thread Spool

I wanted to try using some of the thread I already owned for embroidery and sowing, so I designed some fly tying thread spools.

Same dimensions as commercial spools (at least the once I had).

Printing and combining the hollow and pincher you get a spool with a thread pincher. The solid version has no bells or whistles.

They fit togheter perfectly on my machine, with my PLA but your milage may vary.

I use an M8 bolt and a couple of washers on a drill to spool the thread.