If you’ve ever been to a Maker Faire, perused Thingiverse, or been within 100 feet of a 3D printer, you’ve probably seen a plastic set of planetary gears with a little crank or maybe a set of ...

On a regular bicycle crankset, the chainrings turn in a 1:1 ratio with the crank arms. In the case of the Ultime Ti crankset from French company MG Tech, however, things are a little different – an ...

This 3D printed planetary gear fidget spinner is a fascinating mechanical design that seems like it could spin forever. The intricate gear system moves smoothly, creating a satisfying motion that’s ...

For folks with high horsepower street cars, the allure of a "clutchless" manual Lenco gearbox—and the cool-looking lightning-rod shifters—is pretty clear, but historically, the cost has been ...

From a load-capacity point of view, the most suitable gearhead ratio has the highest torque density for the most compact (and cost-effective) package. From an application point of view, the best ...

The choice between helical and spur gears in gearboxes may seem straightforward. Go with helical gears if you want the gearbox to run as smoothly and quietly as possible. Choose spur gears when you ...

The components get assembled into a planetary gearhead with a roller chain replacing the traditional ring gear. They are assembled into a complete gearhead from Gearing Solutions. Durable gears for ...

Here’s a very neat idea Yelvington Trikes presented at the 2014 AIMExpo, a bike show which is getting underway in Florida as we write. The idea is not exactly a science breakthrough, but is a “why ...

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You know those “What my friends think I do” vs “What I actually do” memes? Well there should be one for 3D printing that highlights what you think you’ll do before buying your first printer vs what ...