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Recommended tube bender

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Mister_Fitz:
I'm going to change the lower lengthwise tubes in my front engine dragster chassis. There is a small radius and small angel bend on each tube where the engine plate is located.
Which tube bender can you recommend? I should be both affordable and high quality as always...
I have seen an old video from Mark Williams where they are building a RED. At some point in the video they use a gas welder to heat the rubes and bend them into position. It was a bend with small angel. Is this a method still used? How is the tubes like this treatment?

hotrod316:
we use pro tool bender, the bender is not bad, it's the dies that hurt????????
about 10 years ago we redid a mark Williams car that mark build (fed) yes he used a gas torch to heat the  tubes. we had many phone calls with then about that car.
steve m

dreracecar:
Heat bending is the proper way to do this.  "ANY" comercially availble bender will crush the bend into the tube, whether it be a mandrel type or not for just a small bend area, its not as noticable when doing a longer bend.
 Its best to mark off a 6" area where the bend will be a heat the area with a "rosebud" tip, keeping a higher percentage of the heat to the inside of the bend because you want to compress the ID over stretching the OD.  The longer the sweep 6" vs 2" does not distrupt the material flow and less likely to kink the bend.
 It can be tricky, and is why a lot of shops build these "OIL DERRICK" frames instead of being more traditonal

 Pro tool, JD Square are junk for doing thin wall moly tubing because its a mandrel action without the mandrel and without it, the OD stretches and deforms the tubing and the bend is "EGG Shaped", do a bend with one of these type, cut the bend in the middle, rotate 180* and try and weld the 2 back together without using any rod

rooman:
Bruce is right on the money on this one. When I was building Ernie Broughton's Comanche clone Don Long (who built the original) was adamant that heat bending was the only acceptable way to do it.

Roo

Mister_Fitz:
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?

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