I've come up with two different ways (so far) to map the spiral arms

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1

I’ve come up with two different ways (so far) to map the spiral arms evenly. Next up: XY mapping!

Source: https://github.com/jasoncoon/fibonacci/blob/gh-pages/fibonacci.ino#L516
http://www.youtube.com/watch?v=E0JwAUGXpuo

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I’d be real interested in how you physically mapped out the hole drilling onto the cardboard.

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Here’s a picture of the back of the board: https://photos.google.com/share/AF1QipNMbXmLbqoGXKTdy2P7uu9c0Q6VIj6W49K7ITw3DsqOMquoQ2Gg6zDxBzYWA4M8gQ?key=ZEdNSlJILTZHaTFGTmZmVzBzNEN1M2g4eG1pbUF3

I put notes in the info section of each picture in the album.

The numbers are determined by the index of the vertex in the Fibonacci spiral, not just radius/proximity, like I originally did on the cardboard prototype.

I printed out the design, centered and taped it to the front of the board, drilled tiny pilot holes, then drilled 31/64" holes. I wish I had used 15/32" or 7/16" instead, for a more snug fit.

4

Looks great!

5

I ended up making a Fibonacci spiral in Photoshop and printed it out on legal paper.

6

Cool, can’t wait to see it!