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Trying to model an upcoming project in CAD or Solidworks? McMaster-Carr has 3D files for many of the things they sell. It’s way easier to use a pre-built bolt model than to try to make it yourself! I’m not sure about the terms of use on these files, but they’ll at least help if you’re working on a personal project.

Becky Stern

Becky Stern

Becky Stern (sternlab.org is a DIY guru and director of wearable electronics at Adafruit. She publishes a new project video every week and hosts a live show on YouTube. Formerly Becky was Senior Video Producer for MAKE. Becky lives in Brooklyn, NY and belongs to art groups Free Art & Technology (“release early, often, and with rap music”) and Madagascar Institute (“fear is never boring”).


  • mj

    Just be sure to verify dimensions before using them in production. Sometimes they’re not accurate.

  • http://www.cddsindia.com Purushothaman

    I don’t see the download option. Can you please update this post if required.