Lumafield Peers into the 18650 Battery
https://hackaday.com/2026/01/31/lumafield-peers-into-the-18650-battery/

[Alex Hao] and [Andreas Bastian] of Lumafield recently visited with [Adam Savage] to share their battery quality report, which documents their findings after performing X-ray computed tomography scans on over …read more (https://hackaday.com/2026/01/31/lumafield-peers-into-the-18650-battery/)

Building a Metal 3D Printer with a Laser Welder
https://hackaday.com/2026/02/01/building-a-metal-3d-printer-with-a-laser-welder/

The development of cheaper, more powerful lasers has always been a cause for excitement among hackers, and fiber lasers are no exception. One of the newer tools they’ve enabled is …read more (https://hackaday.com/2026/02/01/building-a-metal-3d-printer-with-a-laser-welder/)

Limiting Battery Risk On Repurposed Smartphones With PostmarketOS
https://hackaday.com/2026/02/01/limiting-battery-risk-on-repurposed-smartphones-with-postmarketos/

PostmarketOS is a Linux distribution specifically designed for those who wish to repurpose old smartphones as general-use computers, to a degree. This can be a great way to reuse old …read more (https://hackaday.com/2026/02/01/limiting-battery-risk-on-repurposed-smartphones-with-postmarketos/)

iPhone Becomes a Bluetooth Keyboard And Mouse
https://hackaday.com/2026/02/01/iphone-becomes-a-bluetooth-keyboard-and-mouse/

Sometimes you need to use a computer and you don’t have a spare keyboard and mouse on hand. [KoStard] figured an iPhone could serve as a passable replacement interface device. …read more (https://hackaday.com/2026/02/01/iphone-becomes-a-bluetooth-keyboard-and-mouse/)