Building a large 40W C02 Laser For Under $700

Maker News Workshop
Building a large 40W C02 Laser For Under 0

Lasers are awesome. We all know this. If you don’t have one, you want one. Owen wanted one, but had a fairly tight budget. When searching, he found the ones in his price range to be too small. So he built one!

YouTube player

I know that there are some of you who didn’t watch that video yet, who are thinking: “isn’t a k40 a 40 watt laser for less than $700?” Yes, it is. As he explains in the video, he wanted something much bigger with higher quality optics. If you watch closely, you can also see that he could upgrade this to be about 100W for an additional $300 or so. Effectively, Owen has built a much better and bigger k40 at a decent price.

On a side note, this looks like his very first video. What a great first dip into video!

Discuss this article with the rest of the community on our Discord server!

I get ridiculously excited seeing people make things. I just want to revel in the creativity I see in makers. My favorite thing in the world is sharing a maker's story. find me at

View more articles by Caleb Kraft


Ready to dive into the realm of hands-on innovation? This collection serves as your passport to an exhilarating journey of cutting-edge tinkering and technological marvels, encompassing 15 indispensable books tailored for budding creators.