Bending 90 in 20mm or25mm conduit

[Farmelectrics]

or is it a mates job as someone previously said wasnt me tho

 

[SPARKY89]

Please can some one help me please haven't done steel conduit for a while. What's the best way to get a 90 bend at the right length 1st time???

as written its a time consuming exercise each sparky / electrician is different from how the form the lengths me I just do two simple messures then add 2" inches (25mm) and form with a 2ft lengh of 4 by 2 with a 20mm hole or 25mm hole and form from this works pretty well for me granted im over or under by 5 / 10 mill but I would rather have it and not need it then need it and not have it :wink_smile:

 

[telectrix]

you must be good with a spade as well, as you've dug this thread up from 2 years ago. :45:

 

[flyingsausage]

The main thing to do is to mark the former in the right place,no one seems to be able to do that these days,if the mark is right then your conduit will be the right length.
Everyone has different methods, and many sparks have never had to do metal conduit.

I can go for years without doing conduit and it takes a couple off bends,offsets and a bubble to get back into the swing of it.

 

[rmc86uk]

The main thing to do is to mark the former in the right place,no one seems to be able to do that these days,if the mark is right then your conduit will be the right length.
Everyone has different methods, and many sparks have never had to do metal conduit.

I can go for years without doing conduit and it takes a couple off bends,offsets and a bubble to get back into the swing of it.

Agreed, When you don't do it for months it takes a while to get back bending but once into it I love it!

 

[flyingsausage]

I hate metal conduit,I served most of my time doing it.
The last time I done it I had the usual few disasters,but after marking the former in the right place away I went.
As long as you do not try anything fancy like a bend and double set in the first length it soon comes back to you.

Although it can be quite funny watching the 'young super spark know it all's' that have only done conduit at college get put on it and see them really struggle and realize it is a bit harder than plastic conduit with the manufactured bends.

Another thing that young sparks can't do is form an offset,a kick or a bend in trunking,if it is not a manufactured bend or set then they are lost,and they have never heard of fish plates.

 

[somersetsparks]

I hate metal conduit,I served most of my time doing it.
The last time I done it I had the usual few disasters,but after marking the former in the right place away I went.
As long as you do not try anything fancy like a bend and double set in the first length it soon comes back to you.

Although it can be quite funny watching the 'young super spark know it all's' that have only done conduit at college get put on it and see them really struggle and realize it is a bit harder than plastic conduit with the manufactured bends.

Another thing that young sparks can't do is form an offset,a kick or a bend in trunking,if it is not a manufactured bend or set then they are lost,and they have never heard of fish plates.

The last bit of tube I did, had a double bubble 2ft apart, one over 20mm, one over 25mm followed by a 90' and a small set, all on show in one of her majestys prisons, they had a 'consultant' decide that an extra emergency was required, i suppose so escaping prisoners wouldn't fall down the stairs...

Anyway must have looked a bit shifty making my way to the skip with the 'fails' or as I like to say 'practises'

Good luck with a lot of practise you'll be able to do it by eye

 

[shanky887614]

I hate metal conduit,I served most of my time doing it.
The last time I done it I had the usual few disasters,but after marking the former in the right place away I went.
As long as you do not try anything fancy like a bend and double set in the first length it soon comes back to you.

Although it can be quite funny watching the 'young super spark know it all's' that have only done conduit at college get put on it and see them really struggle and realize it is a bit harder than plastic conduit with the manufactured bends.

Another thing that young sparks can't do is form an offset,a kick or a bend in trunking,if it is not a manufactured bend or set then they are lost,and they have never heard of fish plates.

what are these plastic bends you speak of?

its suprising how many people struggle just to measure a 90 long enough.

i wouldnt mind making my own trunking bends but part of the spec in hospitals is to use premade.

everything else we make the bends/sets for (galv+plastic,tray,basket etc)

 

[GLENNSPARK]

steel conny bending
here:

View attachment Galv Guide P1.pdf

View attachment Galv guide P2.pdf

View attachment Galv Guide P3.pdf

 

[Thefailsafe2012]

If your a weed like me try and nick a 4ft scaff tube from somewhere and use it as extension bar on the handle, stops you from just doing press ups on the bar :joker:

 

[shanky887614]

If your a weed like me try and nick a 4ft scaff tube from somewhere and use it as extension bar on the handle, stops you from just doing press ups on the bar :joker:

there was a guy at college he tried to bend a bit off tube but it kept lifting him of floor

he needed to jump up then hang onto it to move it

 

[GLENNSPARK]

If your a weed like me try and nick a 4ft scaff tube from somewhere and use it as extension bar on the handle, stops you from just doing press ups on the bar :joker:

i just drag that bar over me....no probs...lol..

 

[Stroppy]

there was a guy at college he tried to bend a bit off tube but it kept lifting him of floor

he needed to jump up then hang onto it to move it

You've seen me at college then!

 

[Thefailsafe2012]

Hahaha happened to me so much when I first had a go on 25mm! I've been doing me push ups since and now don't struggle so much...............honest!

 

[somersetsparks]

Hahaha happened to me so much when I first had a go on 25mm! I've been doing me push ups since and now don't struggle so much...............honest!

Well you better start the chin-ups as well if you want bend 32mm lol

 

[shanky887614]

Well you better start the chin-ups as well if you want bend 32mm lol

i had to bend heavy guage steel (plumbers crap) at college.

now that was hard work compared to conduit

 

[Thefailsafe2012]

Well you better start the chin-ups as well if you want bend 32mm lol

Pahaha I can't wait for the day I get to use that! Bet I'll have an audience waiting to wet themselves watching me struggle!

 

[itselectric]

You have to remember to put the conduit in the bender the right way (ie the bend would be wrong if your measurment was from the wrong direction). You measure to back of bend and put the measured end in from opposite side of bending handle. Take a set square and hold the pipe in place possibly using the handle to keep it in place put the square on the pipe with the edge on the measured mark. put the pipe with the set square to the" former" face, bend conduit and it should be" right on".
this sounded right when I typed it so hope it comes over right.

As a foot note I worked with a sparky years ago who could take a full length of conduit and bend it into the shape of a toboggon with a running thread on one end and was able to get it so right that he could couple both ends together. I had one try and failed lol.

 

[shanky887614]

You have to remember to put the conduit in the bender the right way (ie the bend would be wrong if your measurment was from the wrong direction). You measure to back of bend and put the measured end in from opposite side of bending handle. Take a set square and hold the pipe in place possibly using the handle to keep it in place put the square on the pipe with the edge on the measured mark. put the pipe with the set square to the" former" face, bend conduit and it should be" right on".
this sounded right when I typed it so hope it comes over right.

As a foot note I worked with a sparky years ago who could take a full length of conduit and bend it into the shape of a toboggon with a running thread on one end and was able to get it so right that he could couple both ends together. I had one try and failed lol.

it threw me at college at first because i had one day using this



then next using proper bender


surely you guys measure it with piece of tube and set square if you are unsure on the bender?

here is a download link to a pdf with it in and other info ive just found on google

http://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CDcQFjAB&url=http%3A%2F%2Fwww.ecollege.ie%2Fsite%2Fliu%2Felectrical_notes%2FLL231.pdf&ei=h-V6Uc5niaXTBcqYgJAI&usg=AFQjCNECCMZatWcAP98fL8TsgB83VGixQg&bvm=bv.45645796,d.d2k&cad=rja

 

[i=p/u]

Can only be 50mm wrong hahahsjakaja