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How to draw a stell tube bending jig?

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erkki67

Well-Known Member
Joined
Feb 18, 2010
Messages
2,982
Location
Romont / Fribourg / Switzerland
Hi

I would like to draw up a kind of bending jig for steel tube structure.

My question is, how much smaller must the radius be, if the initial or the drawing is asking for 10" , 12", 20" and 32" radius like a PA18 Rudder and the the tube is 1/2" and 0.035 thick?

Does there existe any kind of literature for this?

Bst rgds Erkki
 
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