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Old 02-14-2017, 05:33 PM   #1
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Default Conduit bending issue

Was bending conduit today it was my first time in awhile and had an issue. I had a 2 boxes in a stud cavity and had an offset to connect them. Had both connectors in the boxes and measured off the same stud to the same side of each connector. Every time my offset was too large by 1 inch. I'm confused.
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Old 02-14-2017, 07:41 PM   #2
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Was bending conduit today it was my first time in awhile and had an issue. I had a 2 boxes in a stud cavity and had an offset to connect them. Had both connectors in the boxes and measured off the same stud to the same side of each connector. Every time my offset was too large by 1 inch. I'm confused.

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Old 02-14-2017, 07:50 PM   #3
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1"pipe
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Old 02-14-2017, 07:58 PM   #4
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Bend about 1'' less and it should be perfect.
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Old 02-14-2017, 07:58 PM   #5
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He didn't say he was bending a 90 did he?
Was he making a 4" offset and not allowing for takeup?
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Old 02-15-2017, 12:41 AM   #6
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Offset too big or small would be from:
1. Actual bent angles not same as desired angle. Such as bending 50 degrees instead of 45.
2. Bender sliped from marks / not exactly on marks when bent
3. Calculation / bend multiplier wrong
4. Marking / measuring mistake
5. Mistake interpreting bender angle marks. Sometimes when you use a unfamiliar bender the angle marks and handle position may be different. Such as a 30 degree bend the handle is straight up on many benders. But some it's 45 degrees straight up.

It don't matter what spot you line up your offset mark on a bender as long as you do both the same.

Maybe you could post your desired offset, bend angle, and distance between marks to check your math.

A level with common bend angles helps to check your bend amount.

Many times you can adjust more or less offset in as long as it's not matching others or exposed.
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Old 02-15-2017, 12:56 AM   #7
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Was bending conduit today it was my first time in awhile and had an issue. I had a 2 boxes in a stud cavity and had an offset to connect them. Had both connectors in the boxes and measured off the same stud to the same side of each connector. Every time my offset was too large by 1 inch. I'm confused.
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Old 02-15-2017, 01:35 AM   #8
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Old 02-15-2017, 07:06 AM   #9
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I'll tell you what I have found myself scratching my head and wasting time on trivial tasks like this more often than I'd like to admit.

I could also tell you that since I bought the wonderful M12 bandsaw, I measure less and trim to fit more, but that would be bull****, I always measured less and trim to fit more even with a hack saw. The size of the scrap pile is about the same, but there are more little pieces fewer big pieces. I use more couplings. There is less bragging but more going home on time.
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Old 02-15-2017, 07:14 AM   #10
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Originally Posted by MJFElectric View Post
Was bending conduit today it was my first time in awhile and had an issue. I had a 2 boxes in a stud cavity and had an offset to connect them. Had both connectors in the boxes and measured off the same stud to the same side of each connector. Every time my offset was too large by 1 inch. I'm confused.
I get it now, you need to measure back to back to ensure you are allowing for the pipe.
Also, you are measuring the difference or how much the pipe will rise from the bending surface.
You also have to make sure you use the same mark for for both bends, star, notch, arrow, the letter K in the word "back" or what ever you like.
I cant think of another way to make it too long.
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Old 02-15-2017, 07:30 AM   #11
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I get it now, you need to measure back to back to ensure you are allowing for the pipe.
If he did a back to back bend rather than an offset measuring as he said, wouldn't it come out an inch too short, not too long?

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measured off the same stud to the same side of each connector.
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Old 02-15-2017, 07:57 AM   #12
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If he did a back to back bend rather than an offset measuring as he said, wouldn't it come out an inch too short, not too long?
I thought about that as I wrote it and wanted to capture all of the options we can throw out on this thread. I cant understand "longer" either.
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Old 02-15-2017, 12:16 PM   #13
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I'll tell you what I have found myself scratching my head and wasting time on trivial tasks like this more often than I'd like to admit.

I could also tell you that since I bought the wonderful M12 bandsaw, I measure less and trim to fit more, but that would be bull****, I always measured less and trim to fit more even with a hack saw. The size of the scrap pile is about the same, but there are more little pieces fewer big pieces. I use more couplings. There is less bragging but more going home on time.
Time is money, a trim and coupling can keep things on pace. No shame in that game.
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Old 02-15-2017, 04:53 PM   #14
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I'll tell you what I have found myself scratching my head and wasting time on trivial tasks like this more often than I'd like to admit.

I could also tell you that since I bought the wonderful M12 bandsaw, I measure less and trim to fit more, but that would be bull****, I always measured less and trim to fit more even with a hack saw. The size of the scrap pile is about the same, but there are more little pieces fewer big pieces. I use more couplings. There is less bragging but more going home on time.






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Old 02-15-2017, 07:21 PM   #15
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had nothing to do with the length. It had to do with the fact that the offset was too large. don't know what was going on. I even had someone put the numbers into an app and it still was too large. all marks on conduit were correct. I was bending 1 1/4 with a hand bender. bending 22 degree because at 30 my marks were too close. the second mark was in the bend.
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Old 02-15-2017, 08:56 PM   #16
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had nothing to do with the length. It had to do with the fact that the offset was too large. don't know what was going on. I even had someone put the numbers into an app and it still was too large. all marks on conduit were correct. I was bending 1 1/4 with a hand bender. bending 22 degree because at 30 my marks were too close. the second mark was in the bend.
Which type of bender you are using ?

Because there is few differnt way to deal with it.

22.5 degrees ?

How much kick (offset) you try to make ?

Keep in your mind with 1.25" emt bender have either 8 or 10 inch radius so it can affect the offset you are try to hit.
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Old 02-15-2017, 09:04 PM   #17
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had nothing to do with the length. It had to do with the fact that the offset was too large. don't know what was going on. I even had someone put the numbers into an app and it still was too large. all marks on conduit were correct. I was bending 1 1/4 with a hand bender. bending 22 degree because at 30 my marks were too close. the second mark was in the bend.
so the offset was too deep youre saying.

what was too large once you did the calculation? the measurement between the bends?
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Old 02-15-2017, 09:08 PM   #18
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had nothing to do with the length. It had to do with the fact that the offset was too large. don't know what was going on. I even had someone put the numbers into an app and it still was too large. all marks on conduit were correct. I was bending 1 1/4 with a hand bender. bending 22 degree because at 30 my marks were too close. the second mark was in the bend.
Did you think it insignificant to mention that you were bending 1-1/4" at 22 deg?
I'll be in my tent!
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Old 02-15-2017, 09:30 PM   #19
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Was bending conduit today it was my first time in awhile and had an issue. I had a 2 boxes in a stud cavity and had an offset to connect them. Had both connectors in the boxes and measured off the same stud to the same side of each connector. Every time my offset was too large by 1 inch. I'm confused.
So how much 1 1/4" did you burn through in this experiment?
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Old 02-17-2017, 06:34 AM   #20
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20'. So not bad at all
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