[Paul de Groot] wrote in to let us know about a drop-in controller replacement he designed for those economical K40 laser engravers that are everywhere on eBay. With the replacement controller, ...

Right now, you can get a diode laser engraver on eBay for around $100 USD. That sounds like a deal, but it’ll probably use some arcane proprietary software, won’t be terribly accurate, and the laser ...

Like we've said time and time again, GSMArena is chuck full of true geeks and between us you can find veritable experts on anything ranging from drones, electric personal vehicles, IoT and smart home ...