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Hi Everybody! Question: Can we unf 1

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catdeveloper_begin

Automotive
Sep 20, 2016
12
Hi Everybody!
Question: Can we unfold surfaces without using the CATIA built in unfold command? Is there some workaround for this? Not afraid to do some work manually to achieve the result. The attached image could be useful to understand my problem.

 
 http://files.engineering.com/getfile.aspx?folder=7b092dc5-9dd8-49d8-ab39-a2f0c85bea49&file=unfolding_the_surface.jpg
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Sure, you can unfold surfaces manually, as long as you're willing to spend the time and extra effort. Flat patterns were developed manually long before CAD software was written.

If you have the 3D surface model, and the surface is at the neutral fiber; all you have to do is measure the distance(s) of each segment (flat or bend) and add that to your flat pattern, just as it would be done manually.

If the part is formed (instead of bent on a break); you have to do some triangulation to approximate the flat pattern.

 
Hi jackk,

Thanks for the information. I was wondering how exactly to achieve it when I have the part I shown in the image I have attached. There the length of the unfolded flange is varying. And also I am trying to automate this process. So I was looking for pointers on getting it in a generalized way first so that we could code it.
 
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