Still trying to chase the perfect bend in high tensile, thin wall aluminium tube (6061 T6). Using an 8" fixed former and a section bar pressed by a lever and bearings I can get OK bends. I see bends done with no rippling on the inside and wonder how?. Any bending gurus out there. The bends are for an ultralight tailplane (No the Ultralight boys don't know squat) and the bends are acceptable as is I would love to get them perfect or close.
DIY