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Why does the direction of a cutting pattern edge line in the support area change abruptly?


The direction change results from the 0% line compensation in the "Different Compensation by Line" tab for the boundary line in the support area.

This setting requires that the boundary line in the support area keeps the line length, regardless of the compensation set in plane. Since the weld lines adjoining the adjacent cutting patterns are allowed to change their lengths due to the compensation set in plane, the algorithm seeks the geometrically poor but energetically balanced solution.

You can avoid the abrupt change if the relevant boundary lines are allowed to relax freely in the flattening process.


Cutting pattern Constriction Compensation Boundary line Welding line Line equality


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  • Updated 26 February 2021

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RFEM Tensile Membrane Structures

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Generation of cutting patterns for tensile membrane structures

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