Cozy Boat Episode 2: A New Skin

Step 7Polyester Test

Polyester Test
We had plenty of cord to lash the skin on with, but we needed to know if it was Nylon or polyester.
Nylon elongates about 10% when it gets wet, and that makes it get loose. So we measured a chunk of cord, soaked it with water, and measured it again. It's not nylon! Proceed to next step!
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Author:TimAnderson
Tim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of www.zcorp.com, manufacturers of "3D Printer" output devices. His detailed drawings of traditional ...
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