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Old 02-12-2008, 07:33 PM   #31
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Bending EMT conduit around 90 degree corner


Sorry, i could reply much quicker but got hold up with unexpected service call anyway.,,

Goose i know what ya talking about that but i did not get a chance to explain the bender i am describing it is not a hickey bender it a diecast iron short radius bender for EMT's only.

Genrally i don't use the hicky often too easy to kink if not carefull but yes you can get tight bend on it.


hope this will clear up some details with this,

Merci, Marc

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Old 02-12-2008, 07:59 PM   #32
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Bending EMT conduit around 90 degree corner


Marc, I think I know what you're talking about. It sounds like the same thing I'm thinking of. I cannot find a picture of it on the web to save my life, however. I don't think that the OP needs this tool.

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my directions will work the way you ran the pipe but the way I would have run it, I even have 90 of bend left if I needed it.
you CAN stay in the wall with the way I stated earlier and you'll have at least 180 deg. to spare depending on the offset.
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Old 02-12-2008, 08:06 PM   #33
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Bending EMT conduit around 90 degree corner


Yepper,.. Goose we are on the right page .

Anyway i did read Goose's comment and he right on the nail with that details with bending pipes like that.

Merci, Marc
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Old 02-12-2008, 08:34 PM   #34
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Bending EMT conduit around 90 degree corner


Post #30 2nd page I think the image I posted is what your talking about goose.
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Old 02-12-2008, 10:21 PM   #35
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Bending EMT conduit around 90 degree corner


Stubbie, I saw that one, the one I'm thinking of is a little different. I'm sure they do the same thing though
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Old 02-12-2008, 11:58 PM   #36
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Bending EMT conduit around 90 degree corner


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nap, my way will work. I've roughed a lot of houses in my early days. Your way will work but take a lot of unneeded work.
as I have always been told, get 10 electricians together and ask them how to do something an you may very well get 10 different answers. Each of them acceptable. Some better for one reason or another and each of the legal.

the problem I have with your method is at the corner, you end up with a lot of wood missing and I have had too many inspectors get too picky about this. Since there will be a stud on the first wall directly next to the adjacent wall, it is near impossible to make that bend and leave enough wood there to make it acceptable to most inspectors I deal with.

and to Stubbies pic; that bender appears to be a Benfield combination short radius bender (1/2 in and 3/4 in sizes together) which has a 3 inch radius for the 1/2 inch EMT. Since code requires a minimum 4 inch radius on 1/2 EMT, technically, this will not make a legal bend.

as a matter of fact, when you install your way, the last 2X on the first wall will have at least 1 1/2 inches removed from it if you offset to the absolute back of the 2X as you make your offset. That leaving no more than 2 inches of 2X is a real problem but can be remedied if you install a stud brace on the backside of the thinned 2X.

Last edited by nap; 02-13-2008 at 12:09 AM.
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Old 02-13-2008, 12:05 AM   #37
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Bending EMT conduit around 90 degree corner


Hey nap

Ok so what the heck to you use it for? I'm serious not ever having used one.

Would the inspector really care if the wall isn't load bearing and half wall like this one is ?
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Old 02-13-2008, 12:12 AM   #38
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Bending EMT conduit around 90 degree corner


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Hey nap

Ok so what the heck to you use it for? I'm serious not ever having used one.

Would the inspector really care if the wall isn't load bearing and half wall like this one is ?
One of them has around here. He shouldn;t but that doesn;t mean he won;t. Working on a job and the plumber gad to cut out for a 2" vent pipe through non-load bearing 2X wall. Inspector made them install stud braces to shore up the 2X's.

and as to the short radius bender, heck if I know. Not sure if the inspector would even really notice the tight bend but technically it is not legal.
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Old 02-13-2008, 05:50 PM   #39
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Bending EMT conduit around 90 degree corner


I think that tonight I will make this bend in my half gutted bathroom and post pics of it. We'll see what it looks like. I have not done wood studs for a long time nap, you may be right about the removal. Also, nap is correct on the bend radius not being to code. That is why it hardly ever gets pulled out.
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Old 02-13-2008, 07:02 PM   #40
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Bending EMT conduit around 90 degree corner


I'm not really trying to argue with you goose. If you can get it in like this, yes it would be less bending therefore preferrable.



Looking forward to seeing some of your work.

btw; keep the snow and cold over there on your side of the lake. It has been pretty cold over here by Notre Dame.
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Old 02-13-2008, 07:45 PM   #41
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Bending EMT conduit around 90 degree corner


Nap.,,

speaking of snow i going get hit pretty good later tonite [ 4-8 inch / 10-20 CM ]

but i just got back from my shop and i pull out my short radius bender and i did mesured the radius it is 4.05 inch [ 11 cm ] so i am just a hair over the min code requriement.

but that bender is so old it dont have the manufacter name on it.

hope that help a bit.

Merci, Marc


p.s. i am on generator power as i am typing
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Old 02-13-2008, 08:40 PM   #42
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Bending EMT conduit around 90 degree corner


10 -20 CM of snow.....lets see there is 2.54 cm to one inch so that means 10/2.54 is 4 inches of the white stuff and 20 CM is 8 inches of the white. This is why I hate the metric system it always exaggerates the real depth of the snow every time I try to think of snow depth in cm I think it is twice as deep as it really is and lock my 4x4 in.

Now if I was to think of my @%$@ in cm's that would be another thing.......
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Old 02-13-2008, 08:52 PM   #43
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Bending EMT conduit around 90 degree corner


LOL but i have one of my service truck have 4X4 on it [ my hevey IHC do have it and older ford pick up truck have it as well and both are diesel.]

Merci, Marc
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Old 02-13-2008, 08:57 PM   #44
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Bending EMT conduit around 90 degree corner


Hey guys-

I was reading this thread when it dawned on me that, if I understand correctly, I achieved an installation that fits the bill, i.e. inside corner 90 deg. bend, 1/2" emt.

I am remodeling my living room and I needed to fur out the walls to the equivalent of a 2x6 cavity for code purposes (R-19 insulation value for all new and remodel exterior walls). This room had only 2 receptacles in it when I began and let's say that it was by no means code-compliant in terms of required outlets/wall length. Since I knew that I'd be furring, I decided to run the conduit flush to the faces of the existing studs. Of course, the challenge was the corner. What I did was the following:

1. Bend a 90 that is set back so that no chord is beyond the vertical plane of the corner framing.
2. Bend an offset immediately adjacent to the 90 to bring the pipe back flush with the perpendicular wall.

Here's one of a switch box. This was easy since I could just kick back from the vertical 90 to get the conduit within 2 inches of the exposed sheathing before bending 90 to the perpendicular wall (note: the cut lumber is the new furring and drywall blocking).
Name:  conduit bend - switch box.JPG
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(OK, I checked my work and it's not a dog! The short stub on the 90 at the box gives the illusion. Whew!)

The next two were more of what I am describing above.
Name:  conduit bend - recept 1.JPG
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Size:  50.3 KB

Name:  conduit bend - recept 2.JPG
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Size:  50.9 KB

(no dogs here!)

Keep in mind that these are all standard bends and at no point did I violate the 360 rule anywhere between boxes.

Now, I will say that someone made a good point about hogging out too much stud. In my case, the existing wall studs were not touched at all. On the other hand, in my entertainment room that I am remodelling as well, I did run a horizontal conduit across half of one wall and into the other (perpendicular) using the same method. I used a 7/8" auger to carefully drill the holes (at the corner I hogged out a bit more to allow for the curvature). This did not bother my inspector however I did wind up with a few couplings to get all the pipe in! FYI-there was a beam below the wall plate which made running the conduit below impractical.

Jim
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Last edited by BigJimmy; 02-13-2008 at 09:00 PM.
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Old 02-13-2008, 08:59 PM   #45
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Bending EMT conduit around 90 degree corner


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Originally Posted by Stubbie View Post
Now if I was to think of my @%$@ in cm's that would be another thing.......
How many milliliters is a pint of beer?

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