Climbing is a cool sport. With that said, like everything, it’s even better if you integrate lots of glowing colorful LEDs. To that end, [Superbender] worked up this fun climbing …read more (https://hackaday.com/2026/02/25/building-an-interactive-climbing-wall/)

Stop Ironing 3D Prints
https://hackaday.com/2026/02/25/stop-ironing-3d-prints/

If you want smooth top surfaces on your 3D printed parts, a common technique is to turn on ironing in your slicer. This causes the head to drag through the …read more (https://hackaday.com/2026/02/25/stop-ironing-3d-prints/)

Random Number Generator Uses Camera Noise
https://hackaday.com/2026/02/25/random-number-generator-uses-camera-noise/

Random numbers are very important to us in this computer age, being used for all sorts of security and cryptographic tasks. [Theory to Thing] recently built a device to generate …read more (https://hackaday.com/2026/02/25/random-number-generator-uses-camera-noise/)

Adding a Panadapter to a Classic Receiver
https://hackaday.com/2026/02/25/adding-a-panadapter-to-a-classic-receiver/

There was a time when only the richest ham radio operators could have a radio with a panadapter. Back in the day, this was basically a spectrum analyzer that monitored …read more (https://hackaday.com/2026/02/25/adding-a-panadapter-to-a-classic-receiver/)

The MOST Effective Thermal Mass Works Like a Sunburn
https://hackaday.com/2026/02/25/the-most-effective-thermal-mass-works-like-a-sunburn/

Way, way back in the days when men wore beards and wide-lapelled suits in exotic colors, only NASA had access to photovoltaics and ‘solar’ meant solar thermal. In those days …read more (https://hackaday.com/2026/02/25/the-most-effective-thermal-mass-works-like-a-sunburn/)