Bike Part Spirograph

Bikes Education Fun & Games
Bike Part Spirograph

Spotted at the recent Cedar Rapids Mini Maker Faire by Steve Hoefer. Looks like a piece of hardboard with a circular hole in it, lined with bike chain, to make an improvised “ring gear,” with variously-drilled chain gears and sprockets that roll around inside it to guide the pens. A similar idea was published by Instructables user hunrichs back in 2008, but I don’t think this is the same maker, and I don’t think Steve managed to get his or her name. Can somebody help us out? Who made this?

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8 thoughts on “Bike Part Spirograph

  1. Luis says:

    I was there ( and it was form the folks at Art Bikes Vintage & Custom. I was looking for them as well. They setup and I didn’t see them again, I want them for Maker Faire KC! Those are our info cards in the shot. :)

    1. Sean Ragan says:

      Thank you!

    2. Steve Hoefer (@Grathio) says:

      Thanks Luis!
      (And thanks for making the trip to Cedar Rapids. It was great to meet you and all the other KC folks!)

  2. Bike Parts Spirograph « Urban Velo says:

    […] out this BRAND NEW steampunk art-making machine! Crafted from repurposed bike parts, this simple chain and chainring apparatus allows you to create […]

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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 My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

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