Flange with trimming faces :

After typing the flange parameters, you have to indicate one or several faces of the same part, these faces will determine the border of the flange. The AUTOMATIC SELECTION option compute automatically the intersection faces between the flange and the selected part.

Realization example :

 

After selecting the faces, you can indicate an offset value with the trimming faces.

Trimming without offset

Trimming with offset

 

The flange length must go over the trimming faces.

The trimming faces must go over the flange width.

 

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