[Dennis] of [Made by Dennis] has been building a Voron 0 for fun and education, and since this apparently wasn’t enough of a challenge, decided to add a number of …read more (https://hackaday.com/2025/12/22/calibrating-a-printer-with-computer-vision-and-precise-timing/)

Christmas Ornament Has Hidden Compartment, Clever Design
https://hackaday.com/2025/12/22/christmas-ornament-has-hidden-compartment-clever-design/

If you need something clever for a gift, consider this two-part 3D-printed Christmas ornament that has a small secret compartment. But there’s a catch: the print is a challenging one. …read more (https://hackaday.com/2025/12/22/christmas-ornament-has-hidden-compartment-clever-design/)

High-Speed Pocket Hot Dog Cooker
https://hackaday.com/2025/12/22/high-speed-pocket-hot-dog-cooker/

Few of us complain that hot dogs take too long to cook, because we buy them from a stand. Still, if you do have to make your own dog, it …read more (https://hackaday.com/2025/12/22/high-speed-pocket-hot-dog-cooker/)

An HO Model Power Bogie For Not A Lot
https://hackaday.com/2025/12/22/an-ho-model-power-bogie-for-not-a-lot/

For people who build their own model trains there are a range of manufacturers from whom a power bogie containing the motor and drive can be sourced. But as [Le …read more (https://hackaday.com/2025/12/22/an-ho-model-power-bogie-for-not-a-lot/)

SigCore UC: An Open-Source Universal I/O Controller for the Raspberry Pi
https://hackaday.com/2025/12/22/sigcore-uc-an-open-source-universal-i-o-controller-for-the-raspberry-pi/

Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, Analog I/O, and Modbus for the Raspberry Pi. …read more (https://hackaday.com/2025/12/22/sigcore-uc-an-open-source-universal-i-o-controller-for-the-raspberry-pi/)

Using an e-Book Reader as a Secondary Display
https://hackaday.com/2025/12/23/using-an-e-book-reader-as-a-secondary-display/

[Alireza Alavi] wanted to use an e-ink tablet as a Linux monitor. Why? We don’t need to ask. You can see the result of connecting an Onyx BOOX Air 2 …read more (https://hackaday.com/2025/12/23/using-an-e-book-reader-as-a-secondary-display/)

libxml2 Narrowly Avoids Becoming Unmaintained
https://hackaday.com/2025/12/23/libxml2-narrowly-avoids-becoming-unmaintained/

In an excellent example of one of the most overused XKCD images, the libxml2 library has for a little while lost its only maintainer, with [Nick Wellnhofer] making good on …read more (https://hackaday.com/2025/12/23/libxml2-narrowly-avoids-becoming-unmaintained/)