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I've seen many Laser Engraver models on Instructables. I wanted to build my own style, inspired by what I've seen.Especially this one :http://www.instructables.com/id/3W-4x4-Arduino-Las...After many time and efforts, I've came to something pleasant to use and reliable.The maximum POWER is 3W. But usually I stay to 2W to save my LASER DIODE, and to be honest the difference between 2 & 3 Watts is not really obvious.http://www.ebay.fr/itm/Nichia-NDB7875-445nm-9mm-Laser-Diode-In-a-Copper-Modu...
This is the Do It Yourself version of the Mini Metal Maker. The DIY is a kit of instructions & 3D print files, along with a list of parts to find online and buy at the hardware store. A fun build & works great! A neat high-resolution 3D printer for clay or metal clay or anything you can squeeze from a syringe.