Technical > Roo Man's Room
Recommended tube bender
ricardo1967:
Even heated, does it need to pack the tubes with sand to avoid crushing?
dreracecar:
--- Quote from: ricardo1967 on June 12, 2017, 12:58:14 PM ---Even heated, does it need to pack the tubes with sand to avoid crushing?
--- End quote ---
NO, thats why you heat up a 6" section and make it a gradual bend.
dreracecar:
--- Quote from: Mister_Fitz on June 12, 2017, 12:01:47 PM ---It sounds like heat bending is the way to go.
I have never bent a tube with a gas torch before so every bit of tip or instruction of how to do this with a good result would be very much appreciated.
Would you bend the tube first then welding it to the frame. Or would you weld the first part of the tube to the frame then make the bend and after that weld the rest of the tube to the frame?
--- End quote ---
I do both if building a traditional torsion front half. lock the frame down to the table so that the lower rails dont move and insert rail and spot tack. heat and bend til front part fits into a holding fixture and then do the oppiste side. the upper will have to be removable so to be able to fit the upper tube to the lower tube. When stacking the front tubes, where they come to the torsion tube, the width must be greater then the torsion tube so that there is at least 1/4 to 3/8" above and below the torsion tube so that the rails wrap 200* around it for proper welding and support and the cope where the upper and lower tube weld is much shorter instead of if the tubes where to meet the torsion tube the cope and weld would be much much longer
ricardo1967:
--- Quote from: dreracecar on June 12, 2017, 04:50:47 PM ---
--- Quote from: ricardo1967 on June 12, 2017, 12:58:14 PM ---Even heated, does it need to pack the tubes with sand to avoid crushing?
--- End quote ---
NO, thats why you heat up a 6" section and make it a gradual bend.
--- End quote ---
Thanks Bruce!
BK:
Are you talking just slight bends in the frame rails or all the bends like roll cage and the back of the seat?
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