Overcomplicating The Magnetic Compass For A Reason

Some inventions are so simple that it’s hard to improve them. The magnetic compass is a great example — a magnetized needle, a bit of cork, and a bowl of water are all you need to start…

Compact Cycloidal Drive Lives Inside This Custom Brushless Motor

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 motor and call it …

Nanorobotik: Eine winzige Turbine aus DNA

Forschende haben einen Elektromotor aus DNA-Molekülen gebaut, der sich gezielt und kontrolliert in einer nanoskaligen Pore dreht

Magnetic Gearbox, Part 2: Axial Flux Improves Performance

The number of interesting and innovative mechanisms that 3D printing has enabled always fascinates us, and it’s always a treat when one of them shows up in our feeds. This axial flux magnetic…

Single Flex PCB Folds Into A Four-Wheel Rover, Complete With Motors

You’ve got to hand it to [Carl Bugeja] — he comes up with some of the most interesting electromechanical designs we’ve seen. His latest project is right up there, too: a single PC…