Kinks Bending 3/4 EMT

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  #1  
Old 09-05-14, 04:36 PM
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Kinks Bending 3/4 EMT

I'll start off by saying I'm not any sort of Master Bender, but I can handle 1/2 okay. However, I needed a couple runs of 3/4 emt. I've got it tight in the bender, but about half it it ends up kinking.

Any ideas on why I'm starting an EMT scrap pile?

Thanks.
 
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  #2  
Old 09-05-14, 05:59 PM
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I can handle 1/2 okay. However, I needed a couple runs of 3/4 emt. I've got it tight in the bender, but about half it it ends up kinking.
First the obvious, are you using a 3/4" bender?
 
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Old 09-05-14, 07:11 PM
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You mean I shouldn't be using a cinder block and my foot!

Seriously though, yes, 3/4 Klein bender. The funny thing is the kink is usually at the spot where the handle meets the bender. At that junction there is a tiny .25x.5 oval hole.
 
  #4  
Old 09-05-14, 07:27 PM
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Can you provide a picture of some of these kinks? The only thing I can think of is a problem with the conduit you are using and the only time I have seen that was was with 4 inch EMT being bent with a power bender.
 
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Old 09-05-14, 07:35 PM
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It could be that at a certain point you are allowing the bender to come off the ground.
It's important to keep weight on the bender all the way thru the bend.
 
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Old 09-05-14, 09:21 PM
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I agree, it sounds like you need more downward for pressure on the bender from your foot.
 
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Old 09-06-14, 01:03 AM
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I've never had a problem bending EMT other than to get multiple bends in the correct place. You DO need to use the foot pedal on the bender to do the majority of the work and mostly just guide the handle. The exception is when it is necessary to "bend in the air" (making offsets) when you want to put the conduit under your arm as well as using both hands to hold it tight in the bender while the handle is firmly planted on the floor.

Every time I have seen someone have a kinking problem it was because they tried to bend with the handle instead of their foot.
 
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Old 09-06-14, 04:58 PM
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Sorry, I should clarify. I'm air bending offsets. Anything I've done with my foot has seemed to come out fine. Here is a pic as requested.

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  #9  
Old 09-06-14, 05:06 PM
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Bending box offsets ? Bend the short end first and then the second bend.

Easier to bend on the floor and then touch up in the air. 3/4" doesn't air bend like 1/2".
 
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Old 09-07-14, 07:04 AM
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I'm air bending offsets
If you can measure, you can make those bends on the floor without kinking.
 
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