[George Stagg] recently found himself stung by the burden of free time while in lockdown. Needing a project to keep him occupied, he decided to upgrade his 90s Casio CFX-9850G …read more (https://hackaday.com/2022/04/06/old-casio-calculator-learns-new-tricks/)

Turning Old Plotter Parts Into a Smooth Camera Slider
https://hackaday.com/2022/04/07/turning-old-plotter-parts-into-a-smooth-camera-slider/

Taking apart old stuff and re-using the parts to make something new is how many hackers first got started in the world of mechanical and electronic engineering. But even after …read more (https://hackaday.com/2022/04/07/turning-old-plotter-parts-into-a-smooth-camera-slider/)

Custom Macro Keyboard With RGB Lighting
https://hackaday.com/2022/04/07/custom-macro-keyboard-with-rgb-lighting/

From the smallest 60% keyboards for those with no desk space to keyboards with number pads for those doing data entry all day, there’s a keyboard size and shape for …read more (https://hackaday.com/2022/04/07/custom-macro-keyboard-with-rgb-lighting/)

Just What On Earth Is A Therm?
https://hackaday.com/2022/04/07/just-what-on-earth-is-a-therm/

With the news here in Europe full of the effect of the war in Ukraine on gas supplies and consequently, prices, there it was on the radio news: a unit …read more (https://hackaday.com/2022/04/07/just-what-on-earth-is-a-therm/)

Inside an 11 Ton Clock with 1,000 Pieces
https://hackaday.com/2022/04/07/inside-an-11-ton-clock-with-1000-pieces/

We aren’t ashamed to admit it, but we like clocks. We’ve built quite a few and clock projects show up regularly in the pages of Hackaday. But there is one …read more (https://hackaday.com/2022/04/07/inside-an-11-ton-clock-with-1000-pieces/)

Remoticon 2021 // Rob Weinstein Builds an HP-35 from the Patent Up
https://hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up/

from presentation slides
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/04/hp35-feature.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/04/hp35-feature.jpg?w=800">Fifty years ago, Hewlett-Packard introduced the first handheld scientific calculator, the HP-35. It was quite the engineering feat, since equivalent machines of the day were bulky desktop affairs, if not …read more (https://hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up/)

OpenMower: Open Source Robotic Lawn Mower With RTK GPS
https://hackaday.com/2022/04/07/openmower-open-source-robotic-lawn-mower-with-rtk-gps/

https://www.youtube.com/watch?v=BSF04i3zNGw
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/04/Snap-2022-04-06-at-07.24.42-featured.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/04/Snap-2022-04-06-at-07.24.42-featured.png?w=800">Robotic mowers are becoming a common sight in some places, enabled by the cost of motors and the needed control electronics being much lower, thanks to the pace of modern …read more (https://hackaday.com/2022/04/07/openmower-open-source-robotic-lawn-mower-with-rtk-gps/)

Wireless Weather Station Gets Solar-Powered Supercap Upgrade
https://hackaday.com/2022/04/07/wireless-weather-station-gets-solar-powered-supercap-upgrade/