![]() I'll second that types of benders make a big difference. Occasionally it does alright, but I'm bending at radii on the edge of what will work. Stuff with a lighter gray (such as the German or asian) scale just ends up as waste in the scrap bin usually. ![]() I look for tubing with the darkest millscale, and for some reason, that stuff always works out the best. I have wondered if it could have anything to do with how evenly the tubing is annealed? I can tell by the mill scale right away which stuff is going to give me trouble. Without greasing, my rotary draw will not consistently bend any of it. Use of Tube Supports The use of VH tube supports for EO and EO-2 ttings is required in certain thinner wall tubes to ensure proper assembly. In all cases, I'm LIBERALLY greasing the tubing prior to bending. or greater is recommended for cold bending of Parker tubes with hand, mechanical and power bending equipment. I bend thin wall tubing for bicycle frames, and for example, the 3/4 X.035" 4130 from overseas (Taiwan/China?) will not bend around a 3" CLR, the same type of tubing from Germany will, but with wrinkles, and the US tubing (from Plymouth?) will make the bend consistently. That said, I don't entirely understand any of it! I find that the quality of the tubing makes a substantial difference. ![]()
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