How to Build a Laser Cutter Using Salvaged Parts

For makers looking to get started fabricating parts at home, a 3D printer is usually the obvious choice. They’re inexpensive, easy to use, and versatile enough to be handy for a wide range of projects. But, there are times when a laser cutter/engraver might be the better choice—particularly when you’re planning on working with a lot of sheet materials.

Unfortunately, even consumer laser cutters tend to be fairly expensive. But, if you’ve got the skills to build one yourself, YouTuber MakerMan demonstrates how it can be done affordably by salvaging parts. “Affordable,” in this case, is relative: the laser itself is the most expensive part, and still needs to be purchased. But, as you can see in the video, a little bit of DIY elbow grease can save you a lot of money.

MakerMan did that by salvaging many of the parts, like linear rods, bearings, and stepper motors from old printers and scanners. Used printers, especially inkjets, can often be found for a few dollars (or even for free). Disassembling them reveals a lot of useful parts, and MakerMan was able to use these in combination with some 3D printed parts to build the bulk of his laser cutter for very little money.

The laser itself is an Opt Lasers PLH3D-6W-XF, which runs at 6 watts and doesn’t require any additional cooling. It’s capable of engraving metals, and cutting a few materials (like wood). While it’s not cheap ($550), it does appear to be a well-made laser, and should hold up to extended use.