A customizable jig for aligning and gluing a variable number of fins onto model rockets.

The STL uploaded here is for a BT-50 body tube and 3/32" thick fins. If you want to use the Customizer to make a different size, these are some useful Estes rocket tube diameters (Ref: http://www.estesrockets.com/):

Inner diameters: BT-5: 13.2mm BT-20: 18.0mm BT-50: 24.1mm BT-55: 32.6mm BT-60: 40.5mm