Using light to 3D print liquid resins is hardly a new idea. But researchers at the University of Texas at Austin want to double down on the idea. Specifically, they …read more (https://hackaday.com/2025/07/10/double-your-printing-fun-with-dual-light-3d-printing/)

DIY Navigation System Floats this Boat
https://hackaday.com/2025/07/10/diy-navigation-system-floats-this-boat/

[Tom] has taken a DIY approach to smart sailing with a Raspberry Pi as the back end to the navigation desk on his catamaran, the SeaHorse. Tucked away neatly in …read more (https://hackaday.com/2025/07/10/diy-navigation-system-floats-this-boat/)

Listen To The Sound Of The Crystals
https://hackaday.com/2025/07/11/listen-to-the-sound-of-the-crystals/

We’re all used to crystal resonators — they provide pretty accurate frequency references for oscillators with low enough drift for most of our purposes. As the quartz equivalent of a …read more (https://hackaday.com/2025/07/11/listen-to-the-sound-of-the-crystals/)

This Homebrew CPU Got Its Start in the 1990s
https://hackaday.com/2025/07/11/this-homebrew-cpu-got-its-start-in-the-1990s/

[Sylvain Fortin] recently wrote in to tell us about his Homebrew CPU Project, and the story behind this one is truly remarkable. He began working on this toy CPU back …read more (https://hackaday.com/2025/07/11/this-homebrew-cpu-got-its-start-in-the-1990s/)

This Week in Security: Bitchat, CitrixBleed Part 2, Opossum, and TSAs
https://hackaday.com/2025/07/11/this-week-in-security-bitchat-citrixbleed-part-2-opossum-and-tsas/

@jack is back with a weekend project. Yes, that Jack. [Jack Dorsey] spent last weekend learning about Bluetooth meshing, and built Bitchat, a BLE mesh encrypted messaging application. It uses …read more (https://hackaday.com/2025/07/11/this-week-in-security-bitchat-citrixbleed-part-2-opossum-and-tsas/)

PlayStation Case Mod Hides Gamer Shame
https://hackaday.com/2025/07/11/playstation-case-mod-hides-gamer-shame/

[Zac] of Zac Builds has a shameful secret: he, a fully grown man, plays video games. Shocking, we know, but such people do exist in our society. After being rightfully …read more (https://hackaday.com/2025/07/11/playstation-case-mod-hides-gamer-shame/)

Hackaday Podcast Episode 328: Benchies, Beanies, and Back to the Future
https://hackaday.com/2025/07/11/hackaday-podcast-episode-328-benchies-beanies-and-back-to-the-future/

This week, Hackaday’s Elliot Williams and Kristina Panos joined forces to bring you the latest news, mystery sound, and of course, a big bunch of hacks from the previous week. …read more (https://hackaday.com/2025/07/11/hackaday-podcast-episode-328-benchies-beanies-and-back-to-the-future/)

Dearest C++, Let Me Count the Ways I Love/Hate Thee
https://hackaday.com/2025/07/11/dearest-c-let-me-count-the-ways-i-love-hate-thee/