Therom shaping nose cones

Discussions about rockets, construction materials, adhesives, nozzles, nosecones and fin design.
Hamby77
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Therom shaping nose cones

Post by Hamby77 »

Has anybody else had difficulty thermo shaping 20oz bottles in to nose cones using the boiling water method? I just noticed that their harder to get to shape even using 25 psi. Do I need to use more air pressure to get them to shape?
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bugwubber
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Re: Therom shaping nose cones

Post by bugwubber »

I tried it with a couple bottles, gave up. Had much better success using a non pressurized bottle for the nosecone which I shaped with my grinding wheel.

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