Exploring Woodworking Mysteries with Strain Gauges and Raspberry Pi

If you’re not a woodworker, you might not have heard of the “45-degree rule.” It goes like this: a clamp exerts a force that radiates out across a triangular region …read more Continue reading Exploring Woodworking Mysteries with Strain Gauges and Raspberry Pi

Harmonic Drive Uses Compliant Mechanism to Slim Down

[Levi Janssen] has a secret: he doesn’t like harmonic drives. But rather than abandon the torque-amplifying transmission completely, he decided to see about improving them using 3D-printed compliant mechanisms. For …read more Continue reading Harmonic Drive Uses Compliant Mechanism to Slim Down

Take This Cylindrical Coupler Design For A Spin

We’re not exactly sure what kind of shenanigans [Conrad Brindle] gets himself into, but apparently it often requires cylindrical couplings to attach 3D printed parts to each other. He found himself designing and redesigning this type of connector so often that he decided to just make a parametric version of …read more

Continue reading Take This Cylindrical Coupler Design For A Spin

Cable Driven Robotic Joint

Even the oldest of mechanisms remain useful in modern technology. [Skyentific] has been messing with robotic joints for quite a while, and demonstrated an interesting way to use a pulley system in a robotic joint with quite a bit of mechanical advantage and zero backlash.

Inspired by the LIMS2-AMBIDEX robotic …read more

Continue reading Cable Driven Robotic Joint

Cable Driven Robotic Joint

Even the oldest of mechanisms remain useful in modern technology. [Skyentific] has been messing with robotic joints for quite a while, and demonstrated an interesting way to use a pulley system in a robotic joint with quite a bit of mechanical advantage and zero backlash.

Inspired by the LIMS2-AMBIDEX robotic …read more

Continue reading Cable Driven Robotic Joint

3D Printing, Halloween Style

The wonders of 3D printing don’t stop coming. Whether it’s printing tools on the International Space Station, printing houses out of concrete, or just making spare parts for a child’s toy, there’s virtually nothing you can’t get done with the right 3D printer, including spicing up your Halloween decorations.

Not only is this pumpkin a great-looking decoration for the season on its own, but it can also transform into a rather unsettling spider as well for a little bit of traditional Halloween surprise. The print is seven parts, which all snap into place and fold together with a set of …read more

Continue reading 3D Printing, Halloween Style