Whatever your day job, many of us would love to jump behind the controls of a dump truck for a lark. In the real world, that takes training and expertise …read more (https://hackaday.com/2025/06/27/building-a-3d-printed-rc-dump-truck/)

A Wood Chipper from First Principles
https://hackaday.com/2025/06/28/a-wood-chipper-from-first-principles/

For whatever reason, certain pieces of technology can have a difficult time interacting with the physical world. Anyone who has ever used a printer or copier can attest to this, …read more (https://hackaday.com/2025/06/28/a-wood-chipper-from-first-principles/)

Reading The Chip In Your Passport
https://hackaday.com/2025/06/28/reading-the-chip-in-your-passport/

For over a decade, most passports have contained an NFC chip that holds a set of electronically readable data about the document and its holder. This has resulted in a …read more (https://hackaday.com/2025/06/28/reading-the-chip-in-your-passport/)

Open-Source Knob Packed with Precision
https://hackaday.com/2025/06/28/open-source-knob-packed-with-precision/

The world of custom mechanical keyboards is vibrant, with new designs emerging weekly. However, keyboards are just one way we interact with computers. Ploopy, an open-source hardware company, focuses on …read more (https://hackaday.com/2025/06/28/open-source-knob-packed-with-precision/)

Building a Piezo Noise Box
https://hackaday.com/2025/06/29/building-a-piezo-noise-box/

The humble piezo element is often used as little more than a buzzer in many projects. However, you can do more with them, as [Something Physical] demonstrates with their nifty …read more (https://hackaday.com/2025/06/29/building-a-piezo-noise-box/)

Pictures from Paper Reflections and a Single Pixel
https://hackaday.com/2025/06/29/pictures-from-paper-reflections-and-a-single-pixel/

Taking a picture with a single photoresistor is a brain-breaking idea. But go deeper and imagine taking that same picture with the same photoresistor, but without even facing the object. …read more (https://hackaday.com/2025/06/29/pictures-from-paper-reflections-and-a-single-pixel/)

Turbine Blower 3D Prints Every Part, Including Triple Planetary Gears
https://hackaday.com/2025/06/29/turbine-blower-3d-prints-every-part-including-triple-planetary-gears/

There was a time when print-in-place moving parts were a curiosity, but [Tomek] shows that things are now at a point where a hand-cranked turbine blower with integrated planetary gears …read more (https://hackaday.com/2025/06/29/turbine-blower-3d-prints-every-part-including-triple-planetary-gears/)

19th Century Photography in Extreme Miniature
https://hackaday.com/2025/06/29/19th-century-photography-in-extreme-miniature/