Pipe_bender.dxf is a drawing showing the basic dimensions.
Pipe_bender.jpg is a picture of the finished thing.
The dies,rollers and pivot pins c/w clips were ordered from 
the spares dept of http://www.machinemart.co.uk.The rollers
were shortened to 80mm on the lathe.
The original machine mart bender is a generic one
and the parts are probably available thru Harbor Freight etc
if you are in the US.The bottle jack is one I had kicking 
around in the garage.Steel is all 10mm CRS in varying widths.
Any questions just mail me: mark@higham8160.fsnet.co.uk