As it is difficult to explain by words the steps in order to obtain the mass, I made a record using Autodesk Project Chronicle (Dome Mass):
After you apply a pattern , play a little with the parameters: Offset, Belt Measurement and those from Pattern Application :Indent 1 and Indent 2 , etc.....
I didn't mention Grid Rotation ...in your case this must be the problem....but I figure you already discoverded it ..usualy it is a align problem , that's what I said in my previous post...
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