Apparently I create fin jigs when I'm not actually building rockets. Here's another one. The only one I've actually printed and used is the 2.6" 3-fin version (see pics). One pic shows this used in conjunction with [one of my other jigs](https://www.thingiverse.com/thing:3931371) There are 2 files for each size: a 3-fin version and a 4-fin version. Files named by size and fin count. (26_3, 26_4, BT60_3, BT60_4). The 2.6" was created for Madcow 2.64 body tube (67mm). This is slightly...
Topics: thingiverse, model_rocket, rocket, Hobby, stl, hobby