Laser Spirograph
William J. Turkel writes:
A sure sign of a 1970s childhood is a fond memory of doodling with the Kenner Spirograph toy. In the back of my mind Iโve been thinking it would be fun to build something like it into a history appliance. You can already find software versions online, but I wanted something that could be used at the periphery, rather than the focus, of attention. On a recent trip to Active Surplus in Toronto I realized I could build a version quite cheaply. So here it is: a little too thrown together even to call a hack, this is really a kludge.
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