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Why does the flat pattern mess with the thread diameter?

Question asked by Maddin Werner on Apr 28, 2016

Hello Community,

I'm new here hi @all!

I encountered a problem with SW2015 that is giving me headaches. There's this simple part I made, which has four threaded holes. Now in the flat pattern it shows a different core diameter(6.8mm) than in the bended view(8.5mm). It switches back to this wrong diameter every time I unfold the part (in the part as well as in the drawing). Does someone have an idea how this is possible? I attached three drawings to clarify.


Drawing of the  part

Zeichnung 1.JPG

Right diameter (bended)

Zeichnung 2.JPG

Wrong diameter (flat pattern)



Thank you very much!