Tube Design Calculators

We created this page to help you design and manufacture bent tube! Let us know what else you would like to see a calculator for!

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Bend In The Middle Calculator

Double 90 – Symmetrical

Manufacturing Notes

The “CL” symbol in the drawings is the CENTER LINE of the tube. These are bent “center-out”, meaning that you will form all bends outward form the center of the part. In the case of positive clamp block distances, you can bend the part with both clamp blocks installed (if you have 2), or with one at a time. With the negative clamp block location design result, you can only have one clamp block on the tube at a time. Use a tube rotation gauge to ensure your bends are coplanar in this case.

Notes:

Can I use this for any tube bender?

You can likely apply these calulations and layouts to your JD2, ProTools, JMR, Baileigh, or another tubing/pipe bending machine. Just look for the “start of bend” number we provide. Add or subtract your bend offset for your tubing bender, and you’ll be ready to bend accurately on any machine. We’re your one-stop tube bending resource no matter what machine you’re using!

What should we make a calculator for next?

We will build our next FREE calculator for whatever gets the most votes. Just leave your comment and tell us what you want to see. Our 2 most common requests are shown below. We also get a lot of requests for the base 2-bend-U, just a part with (2) 90 degre bends. You can vote for anything, whether we have suggested it or not!

41 Comments

Jacob on 10/16/2021 at 6:00 PM

Slider
Reply
Valweld on 06/16/2021 at 12:11 PM

Pillar please.
Reply
- Richard Rush on 10/17/2021 at 3:19 PM
  
  Alider
  Reply
- Rick Asbridge on 07/22/2021 at 2:36 PM
  
  Please! I have been searching for this type of calculator and I’ve been coming up empty. This would be so beneficial to properly lay out your cage and make sure that all of your mathematical information is correct.
  Reply
Tony Nokes on 06/03/2021 at 7:45 PM

Slider
Reply
lam nguyen on 05/28/2021 at 2:36 PM

both please and thanks
Reply
- donald on 10/19/2021 at 11:03 PM
  
  B pillar please
  Reply
Wardster on 02/06/2021 at 9:17 PM

Slider or B-pillar, couldn’t you use the calculator for either or?
Reply
Ambroze on 01/30/2021 at 5:43 AM

both but if we have to choose between them then b pillar
Reply
Justin on 01/26/2021 at 8:58 PM

Sliders
Reply
Craig McVeay on 12/14/2020 at 5:15 PM

B Pillar.
Reply
Brent on 11/19/2020 at 11:00 AM

B Piller
Reply
Mike on 11/14/2020 at 11:13 AM

B piller
Reply
- Jason F Birch on 06/30/2021 at 2:15 PM
  
  Can we just get these calculators working again ?! But halo calculator would be great.
  Reply
  - Jason F Birch on 06/30/2021 at 2:18 PM
    
    So weird. As soon as I made the comment the calculators started working again. I’ve been checking back for two days including a bunch of times today.
    Reply
  - Josh Gullatt on 06/30/2021 at 2:17 PM
    
    Sorry about that we are in the process of getting them working again. – Josh in customer service
    Reply
Anthony Burgess on 09/08/2020 at 3:54 PM

B PIllar
Reply
Jason on 09/03/2020 at 12:51 PM

B Pillar
Reply
Bruce on 08/11/2020 at 10:38 AM

B pillar
Reply
- 4x4crusher on 08/30/2020 at 6:53 PM
  
  Still waiting on that sweet B pillar calculator ♥️
  Reply
  - Joshua Fike on 12/25/2020 at 12:39 AM
    
    me 2
    Reply
chris on 07/10/2020 at 11:11 PM

b pillar
Reply
Paul N. on 07/09/2020 at 7:09 PM

B Pillar please
Reply
Christopher J Sanchez on 07/09/2020 at 4:30 PM

B-Pillar Please!!
Reply
William Ratliff on 07/09/2020 at 1:41 PM

Both!!
Reply
- Joseph on 07/13/2020 at 10:40 AM
  
  B pillar
  Reply
- Jason Otten on 07/12/2020 at 11:43 PM
  
  B
  Reply
- Adam on 07/10/2020 at 7:34 AM
  
  Slider 🙂
  Reply
Sam Taylor on 07/09/2020 at 1:40 PM

B Pillar
Reply
David on 07/09/2020 at 1:19 PM

Both!? 😉

🇺🇸🇺🇸🇺🇸🇺🇸💪
Reply
Mark Moore on 07/09/2020 at 1:17 PM

B Pillar, please!
Reply
Brian on 07/09/2020 at 12:12 PM

Slider
Reply
Ryan Kelbey on 07/09/2020 at 11:31 AM

b pillar
Reply
Trent Teeters on 07/09/2020 at 11:15 AM

I vote for Slider
Reply
Matthew Vaughn on 07/09/2020 at 10:20 AM

I vote b-pillar.
Reply
- Thomas R on 07/10/2020 at 5:35 AM
  
  B pillar, could be used for bumpers too!
  Reply
Aaron Giddings on 07/09/2020 at 10:07 AM

B Pillar calculator, for the win!
Reply
Dave351 on 07/09/2020 at 10:03 AM

B pillar please, thanks
Reply
- ROSS SCHAEFER on 07/09/2020 at 12:49 PM
  
  Slider
  Reply
stuart on 07/09/2020 at 10:00 AM

slider
Reply
Martin on 07/09/2020 at 9:52 AM

B Pillar
Reply