How to bend hard tubing at the right point

[chaotic kronos]

So its my first hard tubing build .  I keep getting bends a little bit off the point that I need . And because how tight my build is. it needs perfect bends to fit . So any tips on how to get perfect bends 

[Ravendarat]

What kind of fulcrum are you using to make your bend, what thickness is your tubing and what is your tubing made from?

[chaotic kronos]

30 minutes ago, Ravendarat said:

What kind of fulcrum are you using to make your bend, what thickness is your tubing and what is your tubing made from?

Iam using corsair bending kit . Tubing is 12mm and its petg . I need away to mark exact place of bend but I can't use a marker to do so  

[Bitter]

Can you not use a non permanent marker like a dry erase marker or a wet erase marker like these? https://www.amazon.com/16074-Wet-Erase-Overhead-Transparency-Assorted/dp/B00006IFGV

[chaotic kronos]

10 hours ago, Bitter said:

Can you not use a non permanent marker like a dry erase marker or a wet erase marker like these? https://www.amazon.com/16074-Wet-Erase-Overhead-Transparency-Assorted/dp/B00006IFGV

No I tried it on a small piece and it got absorbed into the tube

 

[Bitter]

1 hour ago, chaotic kronos said:

No I tried it on a small piece and it got absorbed into the tube

 

Put a little tape to mark the spot? Maybe pinstripe or painters tape?

[chaotic kronos]

47 minutes ago, Bitter said:

Put a little tape to mark the spot? Maybe pinstripe or painters tape?

I will try to measure it as corsair fulcrum Got measurements so by that I might bend it at right spot .if I fail I might try painting tape as normal tape would melt 

[HM-2]

Can you not just do a single bend per piece? That way it doesn't matter as long as you keep them long enough to trim at either end. 

[chaotic kronos]

13 hours ago, HM-2 said:

Can you not just do a single bend per piece? That way it doesn't matter as long as you keep them long enough to trim at either end. 

The issue is got atleast 3 bends per piece and some how I fucked up the middle bend twice . And there is no watercooling accessories in my country so I do ship it from US or UK. So adding extendors or 90 degree fitting is out of the question now 

[Bitter]

Can you route the tubes for easier or fewer bends?

[chaotic kronos]

29 minutes ago, Bitter said:

Can you route the tubes for easier or fewer bends?

Nah that's the easiest.  Only 2 could  be changed to take out 2 bends but the rest is the only way it be connected. 

[Bitter]

2 hours ago, chaotic kronos said:

Nah that's the easiest.  Only 2 could  be changed to take out 2 bends but the rest is the only way it be connected. 

Well I look forward to seeing the fruits of your labor.

[chaotic kronos]

7 hours ago, Bitter said:

Well I look forward to seeing the fruits of your labor.

Sadly iam busy this couple of days but when I get some free time I will give it get back to bending 

[chaotic kronos]

On 11/27/2021 at 5:40 AM, Bitter said:

Well I look forward to seeing the fruits of your labor.

Well I had some free time and made a triple bend which had 2 of them at the same point .it bends forwards then downward and fits right . I guess I should have been specific with my measurements from the start . Gonna post some pics once I do all the bends . But sadly iam still too busy

[Kid.Lazer]

Sounds like you got it already, but here's a tip as metal fabricator:

Mark a sacrificial piece of your tubing with a permanent mark (marker, paint, deep scratch, what-have-you...) then bend it to the degree of bend you are trying to replicate. Then you can overlay that pattern on top of your finished piece and transfer the bend mark onto it.

[Bitter]

1 hour ago, Kid.Lazer said:

Sounds like you got it already, but here's a tip as metal fabricator:

Mark a sacrificial piece of your tubing with a permanent mark (marker, paint, deep scratch, what-have-you...) then bend it to the degree of bend you are trying to replicate. Then you can overlay that pattern on top of your finished piece and transfer the bend mark onto it.

Reporting this for being too smart, clearly a bot wrote this lol.

 

I keep some 1/8th or thinner aluminum stock around to fab stuff so I can duplicate it in heavier steel or aluminum after I know it all fits and works. Never thought of that for tubing for some reason!

[chaotic kronos]

2 hours ago, Kid.Lazer said:

Sounds like you got it already, but here's a tip as metal fabricator:

Mark a sacrificial piece of your tubing with a permanent mark (marker, paint, deep scratch, what-have-you...) then bend it to the degree of bend you are trying to replicate. Then you can overlay that pattern on top of your finished piece and transfer the bend mark onto it.

 

1 hour ago, Bitter said:

Reporting this for being too smart, clearly a bot wrote this lol.

 

I keep some 1/8th or thinner aluminum stock around to fab stuff so I can duplicate it in heavier steel or aluminum after I know it all fits and works. Never thought of that for tubing for some reason!

Lol i didn't think of that before. That means even if mess up a bend I could keep bending it even if it gets destroyed and use it as template for the real thing . Thanks .

The joke is iam normally good at every thing I try out and as a medical student though my hand skills would help me out but I got it right on my 3rd try but Well atleast I got it right 

[Kid.Lazer]

2 hours ago, Bitter said:

Never thought of that for tubing for some reason!

I don't usually try to make templates like this on a first attempt, but after I invariably mess it up, I use this method to hopefully limit my mistakes to only the first try.

[chaotic kronos]

2 hours ago, Kid.Lazer said:

I don't usually try to make templates like this on a first attempt, but after I invariably mess it up, I use this method to hopefully limit my mistakes to only the first try.

Yeah . Thats the plan I try to make it right if I fail I keep push that piece to be the right size then use it as a template