plastic welder
 

I want to make some custom peices from ABS plastic and came across this "plastic welder". I think this could be a cool thing if it actually works, but I've never seen or heard of one before so I have no idea if it does a decent job of joining plastic. Has anyone here ever tried one or heard of one?

http://www.arizonatools.com/catalog/...crn=&ovtac=PPC