Thingiverse
Model Rocket fin alignment
von jimmyjames008
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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 marked to show what positions to install the arms for 3 or 4 fin rockets.
Only the 18mm base, and two standard fin arms have been tested.
Update: 2/21/2019
Tightened the fit between the base and fin support arms
Update: 8/3/2020
Added Holders for 3/16" Fins
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 marked to show what positions to install the arms for 3 or 4 fin rockets.
Only the 18mm base, and two standard fin arms have been tested.
Update: 2/21/2019
Tightened the fit between the base and fin support arms
Update: 8/3/2020
Added Holders for 3/16" Fins
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