Three pendulum harmonograph

And around and around and around it goes, where it stops nobody...oh wait...number 37 black, dang. Taking bets. And around and around and...

Just the other day we were thinking "You know what we need more of around here? Harmonographs!" And our requests were answered when [Paul] sent in his three pendulum harmonograph. For those unaware, it's a mechanical device that draws Lissajous curves or "really cool circles" to quote some of our staff. [Paul] includes all the plans necessary to make your own harmonograph and begin drawing … [Read more...]