topic Re: Pipe Bending Function in Fusion API and Scripts Forum

Pipe Bending Function

garrettF9Q8X — Mon, 01 Feb 2021 16:20:50 GMT

I was wondering if there is an add on for straightening bent pipes to get cut length? Software add on kind of like bend-tech that works similar to the sheet metal function on Fusion 360? If so, where do I need to make this suggestion to fusion?

Re: Pipe Bending Function

BrianEkins — Mon, 01 Feb 2021 23:30:38 GMT

I'm not aware of any existing apps to do this, but that doesn't mean there isn't one. It would be an interesting project to work on. I did some research but couldn't find an answer about if when bending tubes there's a similar concept like a k-factor when bending sheet metal. Do you know?

Re: Pipe Bending Function

garrettF9Q8X — Tue, 02 Feb 2021 17:10:37 GMT

There is a k factor. https://www.tecnocurve.com/blog/2020/10/02/how-tube-bending-feasibility-is-calculated/#:~:text=K%20%3E%200.20%20%E2%80%93%20A%20fixed%20mandrel,possible%20to%20bend%20this%20tube

I did the calculations using the centerline of the bends length, and it's bloody close to what the cut length is. I think doing a couple test pieces, you could figure out what percent to subtract to per bend for a particular size.

Re: Pipe Bending Function

kellymcdonald_098 — Sat, 22 Aug 2026 05:07:06 GMT

Hi there, not to resurrect an old post, but I have created an add-in specifically for this problem. Feel free to email me and check out our website to purchase it.

kelly@apexdesign.store

www.apexdesign.store

Re: Pipe Bending Function

MichaelT_123 — Sun, 23 Aug 2026 08:06:33 GMT

Hi Mr Enthusiast, Others,

There are quite a few methods of bending pipes; multiply them by different material characteristics, and you end up with a picture that would be hard to synthesize into some sort of formula.

Moreover, there is a common practice of selecting longer pipe blanks, allowing for a particular bend technology characteristic and the final off-cuts.

As pointed out by kellymcdonald_098, basic experimentation would certainly help.

Regards

MichaelT