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Material Sample Accordions - Stretchy Springs

by GregSpilman

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This is a test piece I use to show people the material properties differences with ABS, PLA, PETG, TPU, etc!

It's basically a wave spring with handles at the end. But in different 3d printing materials it becomes very obvious which blends strech and twist, and which are brittle! Thus it becomes useful in selecting the right material for a print job.

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