Behold Gyroman! No, itโs not a Greek food truck โ itโs a littleย walking toy unlike anything youโve seen before. Best of all, you can make one right now for just pennies!
No seriously โ gather up exactly 104 pennies, because youโll need them to build your new wobbly-walking friend.
In 1981 a man named John Jameson created a unique walking toy design using a metal flywheel and pivoting legs to create forward motion. The design won a Mattel toy competition and was later patented by the toy manufacturer and tragically shelved (at least for the U.S. market).
With the patent now expired, Johnโs friend Jeffrey Kerr updated the design to make it friendly for 3D printing. The result is a fully open-sourced 3D printed toy design that can be downloaded from Thingiverse. A step-by-step construction tutorial is available on Instructables.
What I love most about this project is how Kerrย solved the challenge of creating a flywheel to give the toy its centrifugal heft. Instead of separately machining a metal flywheel with the exact weight required, Kerrย designed a lightweight 3D printed framework that can be fit with exactly 104 pennies to provide weight.
Whatโs next for Gyroman? Weโre already seeing users on Thingiverse adapt the design for different currencies. Thereโs also a rumor that the original designer, John Jameson, is considering a giant, rideable version of Gyroman. If so, we need to get that thing for Maker Faire, and Iโm calling dibs on the first ride.
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