I'm a fan of Nicholas Tomihama's Backyard Bower website and YouTube Channel. He has a few designs of these trigger releases for archery on his website. So I thought I would 3d Model one and print it out on a Zortrax in ABS at Maximum infill.

Basically you place this trigger around a finger and allow it to rotate around your finger to release the bow string.

http://backyardbowyer.com/ https://www.youtube.com/user/BackyardBowyer

I'll probably be adding more designs in the future. So check back.