If you have a CNC router, you know you can engrave just about any text with the right tool, but Jointly is a typeface that isn’t meant to be engraved. …read more (https://hackaday.com/2025/09/16/jointly-is-a-typeface-designed-for-cnc-joinery/)

Serious Chemical Threat Sniffer on a Budget
https://hackaday.com/2025/09/16/serious-chemical-threat-sniffer-on-a-budget/

Chemical warfare detection was never supposed to be a hobbyist project. Yet here we are: Air Quality Guardian by [debdoot], the self-proclaimed world’s first open source chemical threat detection system, …read more (https://hackaday.com/2025/09/16/serious-chemical-threat-sniffer-on-a-budget/)

This Rail Speeder Needs a Little Work
https://hackaday.com/2025/09/16/this-rail-speeder-needs-a-little-work/

If you take the wheels off a FIAT Punto, you might just notice that those rims fit nicely on a rail. [AT Lab] did, and the resulting build makes for …read more (https://hackaday.com/2025/09/16/this-rail-speeder-needs-a-little-work/)

2025 Hackaday Component Abuse Challenge: Let the Games Begin!
https://hackaday.com/2025/09/16/2025-hackaday-component-abuse-challenge-let-the-games-begin/

In theory, all parts are ideal and do just exactly what they say on the box. In practice, everything has its limits, most components have non-ideal characteristics, and you can …read more (https://hackaday.com/2025/09/16/2025-hackaday-component-abuse-challenge-let-the-games-begin/)

How to Have a Medium Format Camera Without Breaking The Bank
https://hackaday.com/2025/09/16/how-to-have-a-medium-format-camera-without-breaking-the-bank/

For most people, experimentation with film photography comes in the form of the 35 mm format. Its ubiquity in snapshot photography means cameras are readily available at all levels, and …read more (https://hackaday.com/2025/09/16/how-to-have-a-medium-format-camera-without-breaking-the-bank/)

Making a Laptop with a Mechanical Keyboard
https://hackaday.com/2025/09/16/making-a-laptop-with-a-mechanical-keyboard/

A laptop is one of the greatest tools at the disposal of a hacker. They come in all manner of shapes and sizes with all manner of features. But perhaps …read more (https://hackaday.com/2025/09/16/making-a-laptop-with-a-mechanical-keyboard/)

A 10″ Telescope, Because You Only Live Once
https://hackaday.com/2025/09/16/a-10-telescope-because-you-only-live-once/

Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct. For his 10″ reflector, [Carl Anderson] once again …read more (https://hackaday.com/2025/09/16/a-10-telescope-because-you-only-live-once/)

Perovskite Solar Cell Crystals See the Invisible
https://hackaday.com/2025/09/16/perovskite-solar-cell-crystals-see-the-invisible/