Never used one so I don't know very much about em. I read something a long time ago about a company selling one that you could plug into your own computer to run it. It was dirt cheap too but I don't know how well it would work. I'd mainly need it to just cut out paterns in some steel and that's about it. Any input is appreciated. I searched "cnc" in the threads and pulled up absolutely nothing. Maybe it ignores 3 character search strings.