Model Rocket fin alignment

Model Rocket Fin Alignment Tool.

Slots on bottom of the base and mating fin Arms have a 5 deg draft to them to help them fit together regardless of printer tolerances. They should not push all the way in, so they have a tight fit.


Four Bases are provided, one for each standard thickness model rocket. 13mm, 18mm, 24mm, 29mm.

Fin arms for 1/8" Thick Fins, and 1/16" thick fins are provided. Each size has a Standard, Tall Plate, wide Arm, and wide and Tall configuration.

Bases are