An Elbow Joint That Can
We’re not certain whether [Paul Gould]’s kid’s prosthetic elbow joint is intended for use by a real kid or is part of a robotics project — but it caught our …read more Continue reading An Elbow Joint That Can
Category Archives: cycloidal gearbox
Radial Vector Reducer Rotates At Really Relaxed Velocity
When [Michael Rechtin] learned about Radial Vector Reducers, the underlying research math made his head spin, albeit very slowly. Realizing that it’s essentially a cycloidal drive meshed with a planetary …read more Continue reading Radial Vector Reducer Rotates At Really Relaxed Velocity
Do You Need a Cycloidal Drive?
A cycloidal gear drive is one of the most mesmerizing reduction gears to watch when it is running, but it’s not all just eye-candy. Cycloidals give decent gearing, are relatively …read more Continue reading Do You Need a Cycloidal Drive?
OpenDog Version 3 Is Ready To Go Walkies
We’ve been following [James Bruton]’s open dog project for a little while now, and with his considerable pace of work – pandemic or no pandemic – development has been incredibly …read more Continue reading OpenDog Version 3 Is Ready To Go Walkies
Sixi 2, An Open Source 3D Printable 6 Axis Robot Arm
[Dan Royer] is taking some inspiration from Prusa’s business and is trying to build the same sort of enterprise around open source 3D printable robot arms. His 6 axis robot arm is certainly a strong first step on that road.
As many people have learned, DIY robot arms are pretty …read more
Continue reading Sixi 2, An Open Source 3D Printable 6 Axis Robot Arm
A 3D-Printed Robot Actuator
Somehow, walking robots at our level never really seem to deliver on the promise that should be delivered by all those legs. Articulation using hobby servos is simple enough to achieve, but cumbersome, slow, and not very powerful. [Paul Gould] has a plan to make a better, 3D-printed articulated robot actuator.
His solution is both novel and elegant, a fairly conventional arm geometry that has at its joints a set of brushless motors similar to but a little larger than the kind you might be more familiar with on multirotors, paired with 3D-printed cycloidal gearboxes. Magnetic encoders provide the necessary …read more