Recently [Camden Bowen] took a swing at machining a two-stroke engine out of billet aluminium, following adventures in 3D printing such an engine, as well as building one out of …read more (https://hackaday.com/2026/05/09/machining-a-two-stroke-engine-out-of-aluminium/)

Remembering the BBC Computer Literacy Project
https://hackaday.com/2026/05/09/remembering-the-bbc-computer-literacy-project/

There comes a point in everybody’s life when things that they were a part of are presented as history, and for the 8-bit generation, that time is now. It’s interesting …read more (https://hackaday.com/2026/05/09/remembering-the-bbc-computer-literacy-project/)

The Noctua Fan Files and the Limits of 3D Printing PC Fans
https://hackaday.com/2026/05/09/the-noctua-fan-files-and-the-limits-of-3d-printing-pc-fans/

After Noctua recently released CAD files for a range of their computer fans, one of the first thoughts that popped up for most people was: Can you just to 3D …read more (https://hackaday.com/2026/05/09/the-noctua-fan-files-and-the-limits-of-3d-printing-pc-fans/)

Running Your Own 3G Network
https://hackaday.com/2026/05/09/running-your-own-3g-network/

CDMA2000 was one of the protocols defined for 3G networks and is now years out of date and being phased out worldwide. Nevertheless, there are still vast numbers of phones …read more (https://hackaday.com/2026/05/09/running-your-own-3g-network/)

Challenging The Way We Pedal
https://hackaday.com/2026/05/09/challenging-the-way-we-pedal/

The bicycle is an invention that has not changed in its fundamentals since the first recognisably modern machines appeared in the closing years of the 19th century. Its frame uses …read more (https://hackaday.com/2026/05/09/challenging-the-way-we-pedal/)

Tracing Olfactory Receptor Mapping Between the Nose and Brain
https://hackaday.com/2026/05/10/tracing-olfactory-receptor-mapping-between-the-nose-and-brain/

The way that the sense of smell works is that olfactory sensory neurons (OSNs) are wired up to olfactory receptors (ORs) in the nasal epithelium, from which they send signals …read more (https://hackaday.com/2026/05/10/tracing-olfactory-receptor-mapping-between-the-nose-and-brain/)

Speech Jammer Gets Jammed Up
https://hackaday.com/2026/05/10/speech-jammer-gets-jammed-up/

This project is perhaps the single most passive-aggressive thing we’ve ever seen on this site: rather than tell someone directly to ‘shut up’, [Blytical]’s speech jammer lets you hack their …read more (https://hackaday.com/2026/05/10/speech-jammer-gets-jammed-up/)

Why You Probably Shouldn’t DIY a Car Airbag
https://hackaday.com/2026/05/10/why-you-probably-shouldnt-diy-a-car-airbag/