Moiré Explorer
Posted by
kimpimmel
Seattle 
Joined Sep 12, '17 

Since I was a kid I was fascinated by the moiré effect when two overlapping patterns create another pattern / image.

After getting my Glowforge, I had cut out some regular patterns of holes and slots etc, and noticed they would create that same kind of interference pattern when overlapped. So I figured it would be a fun exercise to create a gadget with interchangable discs to explore the moire effect. I call it the Moiré Explorer

The first prototype was a simple C-shaped ring with captured bearings to let one disc turn in front of the other. The discs are transparent acrylic and look really cool when turned.

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It’s also lively when viewed from different angles!

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The final design is kind of a claw shape that can be displayed 3 different ways

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The construction is 6 layers of PG wood, with spring-loaded bearings that pull the disc into the gadget and hold it steady relative to the fixed disc on the back

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I’m still learning a lot about how to design moiré patterns, but now that I have this gadget, it’s really easy to cut a new design and play around with combinations :slight_smile:

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EDIT:

Parts used for Explorer:

  • One sheet of proofgrade wood
  • 3 small bearings
  • 3 wooden dowels shafts
  • 6 thin plastic washers
  • a small amount of 1/16 thick acrylic (optional to keep disc steady, slide easily)

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