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Old 05-22-2019, 08:17 PM
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teflonrocketry1 teflonrocketry1 is offline
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Join Date: Aug 2007
Location: Whitehouse, Ohio
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The 1320/1340 fin can printed up nicely in with red PLA filament, see picture attached. However this part is not flight worthy as the fins are much too thin and brittle, I doubt they would hold up in a flight or even a landing. I will attempt to rework the 3D file with the software (Blender) that I am learning to use. I plan to put in some reinforcing fillets and make the fins thicker, currently they are 1/16" thick and I think 3/32" thick will be better. The PLA fin can weighs in at 30 grams and the ABS one that has split fins due to warping weighs 31.5 grams.

Was the band on the transition for the 1320 really 0.25" thick? The one at 9:42 in this YouTube video https://www.youtube.com/watch?v=U7sy_fLYSPg looks like it is much thinner.
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