no-dog level help

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davidbananas999

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ok so how in the world do I accurately use a no-dog when bending emt? I have some scrap 1/2" so i decided to do some practice bending. Bending a 30° offset, I clamped the no dog onto the end of the pipe so the 90° vial is parallel with the floor, rotated the pipe slightly so the bubble is in the middle of the vial, and bent the first 30°. Then I flipped everything over, moved to my next mark, and tried to rotate the pipe 180° to finish the offset, but I realized even if the pipe was flipped exactly 180°, I may be holding the bender at a slight angle, throwing off the bubble in the vial. I googled "how to use a no-dog tool" with any variation of the name I could think of, and got nothing.

Tips please?
 
IMO a no-dog level will not help any when using a hand bender... for the very reason you stated.
 
davidbananas999 said:
... I realized even if the pipe was flipped exactly 180°, I may be holding the bender at a slight angle, throwing off the bubble in the vial. ...
Click to expand...
Theoretically, two bubble levels would work. One, the no-dog, and another bubble level attached to the bender.

I personally used the handle down bending technique whereby you line up the first bend with the bender by eye...
 
Ignorant Brit at it once again.
We'd be devastated if we lost the big friendly beast and went no dog.
But I strongly suspect the reference here is rather more to do with a dog leg kink in conduit or EMT* so maybe some kindly soul here could set me straight?

*See, I do learn. However painful process that may be at times..........:)
 
Besoeker said:
Ignorant Brit at it once again.
We'd be devastated if we lost the big friendly beast and went no dog.
But I strongly suspect the reference here is rather more to do with a dog leg kink in conduit or EMT* so maybe some kindly soul here could set me straight?

*See, I do learn. However painful process that may be at times..........:)
Click to expand...
That is correct. A "no-dog" is trade slang for a vial level specifically designed and purposed to prevent such dog-legged bends.

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Smart $ said:
Theoretically, two bubble levels would work. One, the no-dog, and another bubble level attached to the bender.

I personally used the handle down bending technique whereby you line up the first bend with the bender by eye...
Click to expand...

If you bend in the air it works to put a torpedo on the bender handle 90 degrees to the conduit and level out the anti dog with the bender handle level. I do this sometimes if I haven't bent pipe in a while and my eye is off. Also could start the bend in air and finish on the ground to make it easier.
 
davidbananas999 said:
ok so how in the world do I accurately use a no-dog when bending emt? I have some scrap 1/2" so i decided to do some practice bending. Bending a 30° offset, I clamped the no dog onto the end of the pipe so the 90° vial is parallel with the floor, rotated the pipe slightly so the bubble is in the middle of the vial, and bent the first 30°. Then I flipped everything over, moved to my next mark, and tried to rotate the pipe 180° to finish the offset, but I realized even if the pipe was flipped exactly 180°, I may be holding the bender at a slight angle, throwing off the bubble in the vial. I googled "how to use a no-dog tool" with any variation of the name I could think of, and got nothing.

Tips please?
Click to expand...

clamp the no dog on the piece of pipe. put in the bender, and
pick the bender handle up, so the pipe is a couple inches off the
floor. it'll hang straight down. if the no dog is level, put it back
on the ground, and make your first bend.

flip the pipe over, and move to the second mark.

lift it in the air, and see if the no dog is level when the bender
is hanging straight down.
 
I though it helped you prevent dog legs --because when you clamp the level onto the EMT it give you a better visual as how much you've rolled the conduit, its easy to misjudge rolling your EMT 180° for your offsets, that's how I find mine most useful anyway, yet I bend almost all my offsets in the air or I'll stick the end of the conduit off the edge of a scissor lift or loading dock
 
karn said:
I though it helped you prevent dog legs --because when you clamp the level onto the EMT it give you a better visual as how much you've rolled the conduit, its easy to misjudge rolling your EMT 180° for your offsets, that's how I find mine most useful anyway, yet I bend almost all my offsets in the air or I'll stick the end of the conduit off the edge of a scissor lift or loading dock
Click to expand...

Start your second bend in the air and then when you're about halfway there transfer it to the ground while keeping pressure on the pipe. Put a level on the offset and complete the bend until level reads true. It'll be perfect every time


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