I recently ordered a new DC motor for my spiraling harmonograph table.  It arrived just a few days ago.  This evening I installed it into my record player and it works pretty darn well.  I have to improve upon its current mounting but this motor runs at a constant speed and has much more torque than the last one.


I think the results are really apparent.  With the record player spinning at a constant rate the beauty of these shapes has really improved.  I feel great about this crazy gizmo.  It’s like instant retro art.  My buddy Jeff came by and participated in the drawing creations.  He’s already got dibs on a few of these.


As we progressed from drawing to drawing we started developing different methods.  We realized that what was at the core of making beautiful pieces was knowing when to lift the pen.  It’s hard to say no.  You just want to see it keep going.  Ultimately, some of the prettiest drawings had a sparsity to them.


Very happy with this now.

4 Replies to “Day 237 / Works From The Spiraling Harmonograph

  1. Todd Burleson

    I would like to purchase one of these to support the B-roll. How can I do that?

    These are truly beautiful works of analog art! I think that would be the right term, no?

    Congratulations on this. It looks terrific.


  2. The B-Roll

    Thanks Todd, I’d happily make you a couple for free. I’m still learning about how to make interesting drawings out of it. I have yet to really focus on matching pendulum swing-frequency.

    Thanks Marc, I’m excited that you’ve been able to see it. It took me awhile to build and I’m still making adjustments to improve it but I’m very happy that I went through with it. Thanks for the suggestion!

  3. The B-Roll

    Oh yeah, the pens… So far the only pens that I’ve used that work well are the uniball gel pens and the Pigma Micron 1.0. The images in this post are from a Sepia Micron 1.0. I’m looking forward to testing out the Sakura Identi Pens that Karl Sims recommends because they come in various colors. All the best!

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