Or is it “Coordinated Motion”? The latter makes more sense but the former seems to be the accepted term for describing burr-like puzzles whose assembly requires two or more pieces to be moved simultaneously and continuously. I guess I’ll just go with the flow and call them “coordinate motion puzzles.” One of the most beautifully made puzzles I’ve ever come across, coordinate motion or otherwise, is the machined aluminum / joined wood / metal 3D […]
MoreTag Archives: 3D printing
Other People’s Puzzles
Now and then I come across a puzzle which I find deeply satisfying in its balance of complexity and attractiveness. If it’s not too daunting an undertaking I’ll create a CAD design with the aim of 3D printing it. I get a lot of enjoyment from the reverse-engineering process and the insight it gives me into the designer’s mind. As I blogged about in my “Some Fun DIY Puzzles” post, I modeled Dic Sonneveld’s “4 […]
MoreConstant Negative Curvature
One of my favorite events is the local annual Celebration of Mind gathering inspired by Martin Gardner’s immense contribution to recreational mathematics. I went to one last night in Brookline, MA sponsored by Eureka Puzzles and gave a short presentation on my interest in what I’m calling (probably incorrectly) a “unit hyperbola”. My talk was called “Horsing Around With Z=X*Y” and if this kind of thing interests you, you can download the PDF of it here. Basically, […]
MoreMore Prototypes
Though I haven’t blogged in about a year, at least I have been making progress on my puzzles. Pictured here are Model #808 (the rectangular one with two holes), Model #518 (the multi-colored cube), Model #921 (the circular one), and Model #360 (the thicker rectangular one with the red logo). The internal design of Model #808 (formerly known as Model #873) continues to evolve and I’m hoping to get a prototype today that will confirm the reliability […]
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