I don't yet have the luxury of a hydraulic pipe bender, but I needed one the other day and this is what I came up with. I have a few bending forks I use when blacksmithing, but they are too small for pipe. I was doing 3/4 and 1" thin wall. Here's what I came up with. I started with some 3" x 3/4" steel flatbar. The jig is about 8" long overall.