You can't go bi-directional on a closed Geometry - only on open.. For this, it might be better to use "helical"
Please see the picture ,thank you
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i'm very interesed in the manchine and this en form .but my english is very poor .so i only read posts most time
You can't go bi-directional on a closed Geometry - only on open.. For this, it might be better to use "helical"