Hello, I have a problem on CATIA, when I draw a sheet metal part that contains folds, and I unfolded it I see dimensions quite different from what I put before unfolding

3D Design Sheet Metal / Machine Welded
2

Hello

Could you give us a screen print of both situations?

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3

Here is the rating I had after unfolding normally it must be 232mm


capture_decran_11.png
4

The Demand @ ac cobra

is to post 

screen prints

before and after unfolding it

and of course on the side 

@+

 

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5

Maybe you have your ribs in ext in your folded room! In general it's +- equal in int rib for thin thicknesses.

6

Hello

The length of the unfolded will depend on the option chosen for the fallen edges and the loss at the crease.

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7

@franck.ceroux, can I change the value of loss of fold??

8

Hello

By default, the K-Factor is calculated by a formula.

You can modify this formula in the "Sheet Metal Parameters" (also use Excel tables, "Sheet Metal Standards Files") 

Or on each fold by right-clicking in the grayed out field of the K-Factor

9

Okay Thank you