Analog clocks are beautiful things inside, using ornate gear trains to keep track of time in a dance of mechanical beauty. However, all too often, the complexity is hidden inside. This gear clock ...

The fun isn’t limited to metal anymore, though, if you 3D print a strain wave gear like this. Strain-wave gearing is nothing new – it was invented in 1957 and has traveled to the moon on the ...

New York-based Proxy Design Studio has given Gizmodo a first glimpse of its incredible, 3D-printed spherical gear called the Mechaneu, equal parts tactile ...