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Old 02-16-2021, 09:08 AM
Jack Hydrazine Jack Hydrazine is offline
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Join Date: May 2011
Posts: 144
Default BT-50 to BT-20 Boat Tail / Tail Cone

This is a 3D model of a boat tail / tail cone for rockets meant to fit BT-50 airframe tubing.

This is modeled closely for the Estes Sprint (kit# K-49/#1249).

There are two versions - one that is plain and one with a tunnel to allow for a motor retainer clip.

https://www.thingiverse.com/thing:4764379
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Old 02-16-2021, 10:36 AM
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mojo1986 mojo1986 is offline
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Join Date: Mar 2005
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Nice! I was never very good at paper transitions.
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Old 02-27-2021, 06:47 PM
Jack Hydrazine Jack Hydrazine is offline
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I did some test prints and found there were some problems with the design. I re-designed one, test printed it, made more corrections, and finally came out with a print I liked. I re-designed the rest and added a few more versions.
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Old 02-28-2021, 10:24 AM
shockwaveriderz shockwaveriderz is offline
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great work Jack!
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