Hi there!



I need to get information on what is the minimal bending radius for 1.9''
(48mm) OD steel tube with 0.079'' (2mm) wall thickness where bending angle
won't be greater than 90 degrees. I'm planning on building my own tube
bender dedicated for this kind of tubing. Tube bender should be similar to
model presented on this page:
http://www.blindchickenracing.com/To...bingbender.htm



Since I live in Poland, having those tubes bent by someone else is not an
option. Locations where this job could be done are way too distant and
prices are too high. I've already spent some time trying to figure out the
bend radius by myself but I've seen too many different opinions. I tried
looking up this information on Pro-Tools website since I know they are
selling dies for benders but there is no die suitable for me. I'm interested
in minimal radius (CLR) that is possible without additional means like
heating up tube walls or filling tube with dry sand.



I hope this is clear description of what I need. Please forgive me if I made
any language mistakes - English isn't my native language.



Regards

Lukasz