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Old 09-14-2012, 06:48 PM   #1
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Default Noob pipe bending question

I was attempting to bend back-to-back 90s with both stubs pointing in the same direction. It was 3/4 pipe. The stubs were both to be 2', and the distance from the back of one 90 to the back of the other was to be 39 7/8".

I marked the first end of the pipe at 18 inches and bent the first 90. I then measured 39 7/8" down the pipe from the back of the first 90 and marked it. I bent my second 90 with the hook of the bender pointing towards the other end of the pipe. My pipe came up short by about 1 3/4". If I had made the mark at 45 7/8" instead and bent it there, would my pipe have come out correctly?

The reason I did not point the hook towards the first bend when I was making the second bend is that I did not want to have to bend that whole length of pipe up in the air.

Last edited by black; 09-14-2012 at 06:50 PM.
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Old 09-14-2012, 06:51 PM   #2
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http://www.porcupinepress.com/_bending/BackToBack.htm

on the above site, there is a gray rectangle on the left with two arrows, put your arrow over that and different bends will pop up, 3 and 4 point saddles, offsets, etc .

Last edited by 360max; 09-14-2012 at 06:53 PM.
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Old 09-14-2012, 06:55 PM   #3
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your second bend should have been on the teardrop or star point on your bender and then bend back to your first bend.
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Old 09-14-2012, 06:58 PM   #4
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Did you use the star & not the arrow for your second bend?
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Old 09-14-2012, 06:59 PM   #5
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+1 on post #3 , you were almost there, you had the bender the correct way. OR, you should have put the arrow at 45 7/8 yes.
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Old 09-14-2012, 07:02 PM   #6
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Thanks all
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Old 09-14-2012, 07:02 PM   #7
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Your second bend was also a stub.

Bend the first one then measure your 39 7/8" from the back of the conduit and use the arrow just like you did on the first one.

I'm sure there is a way to make both marks then bend but I never took the time to learn it.

Last edited by 220/221; 09-14-2012 at 07:05 PM.
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Old 09-14-2012, 07:10 PM   #8
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Basic math... 24" + 24" + 39 7/8" - 6 1/2" (gain for 2-90s). cut pipe to lenght, then do your 2 stubs = done
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