Originally Posted by
KBs PensNmore
Hi Jordan, I'd make the die a few thou larger than the tube, whatever the die size, the tube will flatten to fit and be shaped accordingly. If the die was to large, the tube would distort and become a D shape on the bends. You'll need to make a couple of followers to allow the tube to retain it's shape, possibly a piece of 30 mm square bar with a hole drilled through the centre and then cut in the centre of the hole.
After seeing some of your work, I'm sure a man of your talent could do that.
Kryn