Does it Make Sense to Upgrade a Prusa Mark 4S to a Core One?
https://hackaday.com/2025/08/30/does-it-make-sense-to-upgrade-a-prusa-mark-4s-to-a-core-one/

One of the interesting things about Prusa’s FDM 3D printers is the availability of official upgrade kits, which allow you to combine bits off an older machine with those of …read more (https://hackaday.com/2025/08/30/does-it-make-sense-to-upgrade-a-prusa-mark-4s-to-a-core-one/)

The Queramin is a QWERTY Theremin with a C-64 Heart
https://hackaday.com/2025/08/30/the-queramin-is-a-qwerty-theremin-with-a-c-64-heart/

While we have nothing against other 1980s 8-bit machines, the Commodore 64 has always been something special. A case in point: another new instrument using the C-64 and its beloved …read more (https://hackaday.com/2025/08/30/the-queramin-is-a-qwerty-theremin-with-a-c-64-heart/)

The Latest Projects from Cornell’s ECE 4760/5730
https://hackaday.com/2025/08/30/the-latest-projects-from-cornells-ece-4760-5730/

ECE 4760/5730 is the Digital Systems Design Using Microcontrollers course at Cornell University taught by [Hunter Adams]. The list of projects for spring this year includes forty write-ups — if …read more (https://hackaday.com/2025/08/30/the-latest-projects-from-cornells-ece-4760-5730/)

This Soviet-Style Clock Uses Homemade Nixie Tubes and Glowing Logic
https://hackaday.com/2025/08/31/this-soviet-style-clock-uses-homemade-nixie-tubes-and-glowing-logic/

The Neon glow of a Nixie tube makes for an attractive clock, but that’s not enough neon for some people. [Changliang Li] is apparently one of those people, because he’s …read more (https://hackaday.com/2025/08/31/this-soviet-style-clock-uses-homemade-nixie-tubes-and-glowing-logic/)

Watch Bondo Putty Get Sprayed Onto 3D Prints
https://hackaday.com/2025/08/31/watch-bondo-putty-get-sprayed-onto-3d-prints/

3D prints destined for presentation need smooth surfaces, and that usually means sanding. [Uncle Jessy] came across an idea he decided to try out for himself: spraying Bondo spot putty …read more (https://hackaday.com/2025/08/31/watch-bondo-putty-get-sprayed-onto-3d-prints/)

Building a Macro Pad into a Business Card
https://hackaday.com/2025/08/31/building-a-macro-pad-into-a-business-card/

A business card is a convenient way to share your contact information, but it’s unfortunately prone to being thrown away or forgotten. PCB business cards try to get around this …read more (https://hackaday.com/2025/08/31/building-a-macro-pad-into-a-business-card/)

NASA is Taking Suggestions for Raising Swift’s Orbit
https://hackaday.com/2025/08/31/nasa-is-taking-suggestions-for-raising-swifts-orbit/