Collaborate Disseminate
With the popularity of robot dogs, many people have gotten on the bandwagon and tried building DIY versions. Most of them end up attaching a gearbox to an off-the-shelf brushless …read more Continue reading Compact Cycloidal Drive Lives Inside This Custom Brushless Motor
Placing two motors together in a shared drive is a simple enough task. By using something like a chain or a belt to couple them, or even placing them on …read more Continue reading Differential Drive Doesn’t Quite Work As Expected
[Petar Crnjak]’s Faze4 is a open source robotic arm with 3D printable parts, inspired in part by the design of industrial robot arms. In particular, [Petar] aimed to hide wiring and cables inside the arm as much as possible, and the results look great! Just watch it move in the …read more
Continue reading Robotic Arm Sports Industrial Design, 3D-Printed Cycloidal Gears
Stepper motors are great for projects that require accurate control of motion. 3D printers, CNC machines and plotters are often built using these useful devices. [InventorArtist] built a stepper-based cycloid drawing machine, and made use of a nifty little hack along the way.
The machine uses a rotating turntable to …read more
Continue reading Cycloid Drawing Machine Uses Sneaky Stepper Hack
Cycloidal drives are fascinating pieces of hardware, and we’ve seen them showing up in part due to their suitability for 3D printing. The open source robot arm makers [Haddington Dynamics] are among those playing with a cycloidal drive concept, and tucked away in their August 2018 newsletter was a link they shared to a short but mesmerizing video of a prototype, which we’ve embedded below.
A cycloidal drive has some similarities to both planetary gearing and strain-wave gears. In the image shown, the green shaft is the input and its rotation causes an eccentric motion in the yellow cycloidal disk. …read more
Continue reading A Peek at the Mesmerizing Action of a Cycloidal Drive