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 amazing1.com for plans to buy
robotguy47 years ago
I would suggest Kipkay's instructable. It wont melt metal, but it will be awesome! Sort of...