A Rotary Dial The 3D Printed Way
https://hackaday.com/2026/03/11/a-rotary-dial-the-3d-printed-way/

There’s a meme which may have a basis in truth, of a teenager left clueless when presented with a rotary telephone. The dial, in reality a mechanical pulse chain generator, …read more (https://hackaday.com/2026/03/11/a-rotary-dial-the-3d-printed-way/)

Are We Finally At The Point Where Phones Can Replace Computers?
https://hackaday.com/2026/03/11/are-we-finally-at-the-point-where-phones-can-replace-computers/

There was an ideal of convergence, a long time ago, when one device would be all you need, digitally speaking. [ETA Prime] on YouTube seems to think we’ve reached that …read more (https://hackaday.com/2026/03/11/are-we-finally-at-the-point-where-phones-can-replace-computers/)

3D Printing a Harmonic Pin-Ring Gearing Drive
https://hackaday.com/2026/03/11/3d-printing-a-harmonic-pin-ring-gearing-drive/

Cycloidal drives are a type of speed reducer that are significantly more compact than gearboxes, but they still come with a fair number of components. In comparison, the harmonic pin-ring …read more (https://hackaday.com/2026/03/11/3d-printing-a-harmonic-pin-ring-gearing-drive/)