3W 4'x4' Arduino Laser Cutter/Engraver

In this tutorial you will learn how to make your own 4 ft by 4 ft, Arduino controlled, 3 watt laser engraver / cutter (for thin materials) for around 300$. The main thing that separates this tutorial from other laser engraver tutorials on here is the roughly 42 x 42 inch cutting/engraving area. This project arose when I was trying to create a 20 x 15 pixel coffee table. I needed to be able to cut my own fairly large foam grids in order to make the light separation to create the "pixels". One of the most expensive parts to creating your own pixel table or wall is creating the grid, most have theirs laser cut out of foam by some sort of online laser cutting service. The only problem with the online service is that it isn't cheap, and I'm a broke college student. The only alternative I saw ...



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