If you've been 3D printing for a while, you might have heard of Klipper. This custom firmware improves many 3D printers, but does take some work to install.

Specifically, the site saw a 3-4C drop in temps with the new firmware. That may not sound like much, but performance also improved, as the Raspberry Pi 4 did not throttle as quickly.

The Raspberry Pi 4 software environment served as the foundation for the Raspberry Pi 5, with numerous features being added and refined throughout the Pi 4’s lifecycle.

Mysterious glitch causes Wi-Fi to stop working when Raspberry Pi 4 outputs to HDMI at higher resolutions.

It has been pretty quiet on the Raspberry Pi operating system since the rash of updates around Christmas/New Year. Not that there hasn't been plenty of other interesting things going on, of course ...

The Raspberry Pi 4 mini PC is geared to throttle performance at around 80°C to reduce the processor temperature.

The firmware is simple and in C so it can support many microprocessors including common 8-bit and 32-bit CPUs found in 3D printers. Klipper is able to achieve precise high stepping rates.