Along the road to developing his own cryocooler to produce liquid nitrogen, there are a number of interesting rabbit holes [Hyperspace Pirate] has found himself taking a look at. For …read more (https://hackaday.com/2023/03/10/making-dry-ice-at-home-is-just-as-hard-as-it-sounds/)

More Drill Press Mods: Adding a VFD Means No More Belt Changes
https://hackaday.com/2023/03/10/more-drill-press-mods-adding-a-vfd-means-no-more-belt-changes/

A decent drill press is an essential machine tool for almost any kind of shop, and marks a significant step up in precision compared to a hand drill. The ability …read more (https://hackaday.com/2023/03/10/more-drill-press-mods-adding-a-vfd-means-no-more-belt-changes/)

Low-Power Wi-Fi Includes e-Paper Display
https://hackaday.com/2023/03/10/low-power-wi-fi-includes-e-paper-display/

Designing devices that can operate in remote environments on battery power is often challenging, especially if the devices need to last a long time between charges or battery swaps. Thankfully …read more (https://hackaday.com/2023/03/10/low-power-wi-fi-includes-e-paper-display/)

The USB Protocol, Explained
https://hackaday.com/2023/03/10/usb-protocol-explained/

If you can explain what a USB PID, a J state, a K state, and an SOF are, you can probably stop reading now. But if you don’t know or …read more (https://hackaday.com/2023/03/10/usb-protocol-explained/)

27 Litres And 12 Cylinders, With A Practical Station Wagon Body
https://hackaday.com/2023/03/10/27-litres-and-12-cylinders-with-a-practical-station-wagon-body/

If you were to name one of the most famous individual road cars in the world, what would it be? If you’re British and of a Certain Age, then it’s …read more (https://hackaday.com/2023/03/10/27-litres-and-12-cylinders-with-a-practical-station-wagon-body/)

A Love Letter to the Sphere Computer
https://hackaday.com/2023/03/11/a-love-letter-to-the-sphere-computer/

[Ben Z] loves the Sphere computer, a very early entry in the personal computer boom of the mid 1970s. The 6800 CPU was unique in its day that it was …read more (https://hackaday.com/2023/03/11/a-love-letter-to-the-sphere-computer/)

A Fancy Connected Caliper For Not A Lot
https://hackaday.com/2023/03/11/a-fancy-connected-caliper-for-not-a-lot/

An essential for the engineer is a decent caliper, to measure dimensions with reasonable accuracy. Some of us have old-fashioned Vernier scales, while many up-to-date versions are electronic. When entering …read more (https://hackaday.com/2023/03/11/a-fancy-connected-caliper-for-not-a-lot/)