How hard is bending tubes?

[xgn]

Hello I'm in progress of building a watercooling loop i have everything setup the only thing remaining is bending the tubes its petg.

To get the right size do you measure 3mm extra then sand it down? I ordered a cheap heat gun with 2 gears 450c & 600c 

[Majestic]

I'm not familiar with watercooling, but bending something usually goes best by giving the material a chance to settle (so slow movements) and using something as a filler to prevent it from buckling down the center. 

 

https://www.deheul.com/afbeeldingen/afb2055.jpg

[Andrew Storlie]

Its easy.... but TAKE YOUR TIME. Lower heat for longer time, keep the tube moving/spinning over heat. Once the tube bends on its own, bend it to the right angle... then hold for 60 sec to make sure its cooled enough that the angle wont change. Practice a few times will help alot

[Andrew Storlie]

I'm not familiar with watercooling, but bending something usually goes best by giving the material a chance to settle (so slow movements) and using something as a filler to prevent it from buckling down the center. 

 

https://www.deheul.com/afbeeldingen/afb2055.jpg

if your not familiar with watercooling then you probably shouldnt try and give advice. Petg and hard line tubes come with silicon tubes to keep the tube from buckling. And slow movments wont really help or hinder anything

[Majestic]

if your not familiar with watercooling then you probably shouldnt try and give advice. 

 

Because maybe i've done tube bending unrelated to water cooling. Bending too fast can cause fissures, I don't believe watercooling tubes are any different than from what I handeled. 

 

Also, don't be an ass, If I disclose my unfamiliarity I'm sure the OP can take it as complimentary advice.

[Benji_w]

Hello I'm in progress of building a watercooling loop i have everything setup the only thing remaining is bending the tubes its petg.

To get the right size do you measure 3mm extra then sand it down? I ordered a cheap heat gun with 2 gears 450c & 600c 

 

So easy my Nan could do it, don't let your bends be dreams, JUST DO IT!

 

[xgn]

ok so another thing the when i tighten down the fittings i can even pull them off with my hands is that normal?

do i just screw them down until they stop or do i need tools for that too?

[SonoDanshi]

ok so another thing the when i tighten down the fittings i can even pull them off with my hands is that normal?

do i just screw them down until they stop or do i need tools for that too?

If you can pull them out without much/any resistance then you may have the incorrect sized tubing. Bitspower seem to offer 12mm petg tubing whereas most other companies use 13mm. If you have bitpower tubing you pretty much need bitspower fittings to go with them.

 

Can you tell us the exact fittings and tubing you purchased?

[W-L]

Hello I'm in progress of building a watercooling loop i have everything setup the only thing remaining is bending the tubes its petg.

To get the right size do you measure 3mm extra then sand it down? I ordered a cheap heat gun with 2 gears 450c & 600c 

 

For bending a test bend if your best way to find out how things react in your scenario, say make a mark with a marker and make a bend to see the radius and distance the tube goes out on the bend. 

 

As for your fittings no they should not pull out once the compression ring is tightened all the way down, what fittings are you using and double check using a pair or calipers to ensure your tubing is within specifications.

[xgn]

If you can pull them out without much/any resistance then you may have the incorrect sized tubing. Bitspower seem to offer 12mm petg tubing whereas most other companies use 13mm. If you have bitpower tubing you pretty much need bitspower fittings to go with them.

 

Can you tell us the exact fittings and tubing you purchased?

EK hdc 12mm and ek petg tube

 

Edit 

nvm i just didnt hold the fitting tight when i screw it on the valve i could screw it all the way down and i cant pull it off with just hands.