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casting sugru in 3d printed molds e1350244931577 Casting Sugru in 3D Printed Molds

skillbuilder casting 158x158 Casting Sugru in 3D Printed MoldsFrom sugru user Carson:

A clumsy seat-mate on an airplane broke the audio plug on my earphones when he was trying to get out of his seat. I was able to remove the existing overmolded strain relief and resolder the connections, but I was left without a strain relief. I used some heat shrink tubing for a while, but was unsatisfied with the appearance.

Carson was able to download the original CAD file for his earphones’ strain relief from the manufacturer’s website and use it to design the mold elements, which were then printed by photopolymer jetting. He used olive oil as a mold release. More details at the link below.

How to mold precise rubber parts with Sugru

P.S. If you’re in the market for Sugru, please consider buying it through the Maker Shed.

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


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