What am I doing wrong?

[ban-all-sheds]

 

[Adam_151]

Have you been backing it off to cut the swarf out every turn you put on?

 

[ericmark]

Did you use tallow or some other cutting fluid?

 

[Spark123]

Aye, use some trefolex or similar. Turn the die a full turn forwards then half a turn back, jiggle it, full turn forwards, half a turn back, jiggle it etc

 

[mattylad]

What you are doing wrong is messing about with conduit when MrsBAS told you to cut the grass & wash her car!

 

[sparkypete1]

the threads on your die maybe worn, or you may have swarf between the die threads.

 

[Wooshzz99]

Looks like it would do to me. Who is going to see it inside a coupler??

 

[davelx]

Looks like it would do to me. Who is going to see it inside a coupler??

It's called having pride in your work. All too seldom seen these days. "Would do " is not acceptable. The aim should be perfection, or as close to it as you can get.

 

[NotHimAgain]

As others have said it looks like some swarf is clogging the cutting thread on the die.

If you were doing hundreds of these you would probably accept these threads with just a small improvement. If you want 'perfection' you will probably have to run the die off every few turns and clean it (usually just by banging it on the bender . Bear in mind that conduit is not made from the best quality steel.

Also bear in mind that the socket to conduit interface needs to provide a good electrical connection that might have to carry fault current - given this 'perfection' might not be the smoothest thread but the one that makes the best contact - note that what you are producing is generally a 'use once' thread.

Don't be tempted to reverse the die as this will make a parallel thread that will not tighten properly.

 

[Trazor]

Don't be tempted to reverse the die as this will make a parallel thread that will not tighten properly.

Looks like a parallel thread to my eyes.

I would bet on a blunt die.

 

[ColJack]

your die is stuffed.. needs re-sharpening or a damn good cleaning with a wire brush to get the crud out of the threads.

could also be a worn follower allowing the dies to rock from side to side slightly as you screw..

 

[Wooshzz99]

Dave do you actually work for a living or live in an Ivory tower??

Anyone that works for a living bends, cuts and uses an electric threader. You dont walk around inspecting the threads ---- if the coupler or box fits thats all thats required.

What an attitude perfection LOL its only a thread on a bit of conduit.

I personally DO NOT remember the last time I used conduit to carry the earth I always run in a cpc.

 

[Spark123]

Electric threader?? I've never used one to thread conduit yet.
The conduit needs to be earthed - little point in installing metal conduit otherwise.

 

[Wooshzz99]

You have never used an electric threader !!!! You are joking


http://www.hss.com/g/68421/Electric-Die-Stock.html

I think you are winding me up.

 

[Wooshzz99]

I DID NOT SAY not to earth it I said not carrying the main earth.