pattern grouping problem topology optimisation

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

hello

I am trying to make the component  symmetry about the Z axis, I have used the pattern grouping and placed the anchor node at centre, and the first node next to it, however the results component is still not completely symmetric. 4 yellow lines and one yellow line

how can i resolve this problem  

thank you

 

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