Pipe Bending

[Chalked]

How about using two of these? And offsetting at the top?

 

[marvoni]

I just had a dry run by hand. I made a 360 with the hand bender and with a bending spring inserted which was straight forward then annealed the pipe with the spring still in it and worked it by hand down to about 90mm. It just started to ripple on the internal surface at that diameter. The whole process took about 30 minutes then another hour and a half to get the spring back out .

I'll have another go with ice when I have the time and see if the results are any better.