Plastic conduit bending springs

[Toneyz]

Bending Springs for plastic conduit someone once said to me that you should tie on end loop and bring through spring it stops it deforming when pulled out.

 

[telectrix]

i'm still pondering on what use a plastic spring would be.

 

[telectrix]

Why use a spring???

at that rate he might just manage 10 bends / shift.

 

[The Ghost]

I don't usually find the end of my spring disappears and I put a piece of metal through the circlet at the end of the spring and twist as I pull out. I never put the spring that far down the conduit. I just use straight couplers to get the length I want.

 

[drzsta]

And on the matter of 20mm white conduit, don't buy screwfix version the walls are to thin internally and the pipe kinks when bending.

This, I was cursing on every bend when the s***t they supply creased. Sold as 'heavy gauge' but the walls are paper thin.

 

[7029 dave]

I feed a bit of 1.5 single through the spring so when you pull it back it's not stretching it.

That's how I do it Lee, loop it through , using singles stranded, piece of red was on my spring for years.

 

[FUSEServices]

I'm really surprised this hasn't been mentioned. All you have to do is not send the spring that far down if you are forming a sharp bend, then as you withdraw, place a screwdriver through the loop on the spring and turn it clockwise. This will tighten the spring making it thinner and it will pop out with ease.

I don't think I will be P@@ about using this method though. What a faf!

 

[FUSEServices]

Oh, and as for sending a pull wire right through the spring... Don't! ;-)

 

[telectrix]

Oh, and as for sending a pull wire right through the spring... Don't! ;-)

why not? something i've never tried but....

 

[Deleted member 93172]

When I got my first spring recently, I remembered reading that from a member on the forum so down the middle and tied on the loop with a 2.5 CPC. Seems like a better way to me but without scientific reviews! there will be no proof one way or t'other!

I think that might have been me, always have used that method for many years.

 

[Deleted member 26818]

If you feed the wire through the length of the spring, it will be harder to remove the spring.

 

[Deleted member 93172]

Each to their own method

 

[telectrix]

not tried the hot sand method. too slow for my liking, but might be worth a try on a job with no pressure.