How to build or where to get plans for a high powered laser?

I want to build a homemade laser system that can burn through iron/steel and impress my friends. Does anyone have any plans or have suggestions on where to find plans for this?

buy the evil genius book series or go on for plans to buy
but won't that burn out the laser quickly?
robotguy48 years ago
I would suggest Kipkay's instructable. It wont melt metal, but it will be awesome! Sort of...
robotguy48 years ago
Actually, Geoffrey, you are WRONG about the metal "burning" laser. What do you think industrial lasers are? How about laser cutters? As for a laser within this guy's price range, meh. The technology doesn't exist. Not to mention that either the lasers are freakin' huge or the melting metal (MELT metal, not BURN) isn't impressive. I agree with Geof. Go with the balloon popping, paper burning kind.