It's crazy simple and maybe one of you guy's can come up with an improvement. This was my first "crack" at it and it worked well enough. I've always wanted to chuck it up in a slow lathe to spin it, I happen to have just bought my very first lathe but I need to organize (clean out some ****) a space for for it. (and my very first mill)
Now I usually put it in a vise and crank the pipe through it with a pipe wrench on it. The blade is made from a sawzall blade that I just filed a rounded hook or slot in it with a thin cut off wheel and used a chain saw file to touch it up. I made it about the wall thickness of black well pipe. That angle is about 30*
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I used 2 large washers and punched out the inside (crudely with the iron worker) so it was at least as big as the 1 1/2"? pipe's inside, sandwiched together and iirc ground a recess in to hold the "blade" mechanically other than just squeezing it between the washers. That nut welded to the side of the pipe is to hold a smaller dia. pipe
inside the the pipe so that it guides a smaller plastic pipe against the cutter. I don't need it for 1 1/4 pipe (tubing). Does that make any sense?:laughing: