This is a parachute calculator that Sean wrote for Apollo Models. It's more accurate than some other parachute calculators out there on the internet and it also calculates the drift of the chute as well.
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This tool will take a rocksim file and generate a fin template for printing.

It essentially takes a Rocksim file and converts 1mm to 10px, so be warned when trying larger fins! It should handle multiple fin sets, custom fins, standard fins and fin tabs, although it won't handle elliptical fins.
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