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Old December 22nd, 2009, 11:50 AM   #1
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Default Tube bending question

I need to bend some 1.5" tube and what I need to do is 2 opposite 45's as close to each other as possible. Anyone know how close I can get them?


I am using a JD2 bender.

I am still relatively new to bending tube and am looking for some help and advice.

Thanks.
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Old December 22nd, 2009, 01:32 PM   #2
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you should be able to get the tangent points no more than 2" from one another. depending on how you clamp it and how creative you get you can almost make them tangent.
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Old December 22nd, 2009, 01:43 PM   #3
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had to do about the same thing on my front hoops - like Geo said, just have to get a little creative

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Old December 22nd, 2009, 01:47 PM   #4
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at work I can do them with no room between tangents (but we have thousands and thousands in tooling all we do is bend tubes). im an engineer there and if i see a tangent to tangent dimension of less then 2D (2 times the dia), so 3 in your case, i recommend having dedicated tooling made... its like a rule of thumb, while you CAN do it with less then 3 in it usually isnt worth it.

also another thing you can do is depending on what you have for bend wheels you can use a smaller radius in the bend making giving you more room in between bends
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Old December 22nd, 2009, 02:05 PM   #5
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Quote:
Originally Posted by DUNE JUMP View Post
had to do about the same thing on my front hoops - like Geo said, just have to get a little creative




Do you know the distance between those bends?


And do you plan on stopping by this evening? This is the bending question I had for ya.




This is what I need to do (seat riser) and would like to get the two bends as close to each other as possible but it looked like the first bend would hit the follower I think it might be called.
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Old December 22nd, 2009, 02:09 PM   #6
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you should be able to get the tangent points no more than 2" from one another. depending on how you clamp it and how creative you get you can almost make them tangent.
Are the tangents the start and stop of the bends?
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Old December 22nd, 2009, 02:47 PM   #7
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Yah, I'm still planning on stopping by
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Old December 22nd, 2009, 03:00 PM   #8
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Are the tangents the start and stop of the bends?

for the most part, yes.
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Old March 1st, 2010, 08:29 PM   #9
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Got it figured out.

Had to make a custom tube holder to make this happen, I think I can start the second bend at the end of the first one but for what I needed I used a one inch space between them.
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