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how to trim extruded body to a curved surface

Question asked by Kingsley Hill on Sep 4, 2015
Latest reply on Sep 4, 2015 by Kingsley Hill

Let me start by saying I am new to all this..so no answer is too obvious -- nothing is obvious to me.

 

I have extruded an ellipse and then at the extruded end of the resulting body I have revolved an arc and its offset entity.  Think about the arm of a wind anemometer connecting to the cup on the anemometer.  Because of the curved inner surface of the cup the arm protrudes on the inside of the cup.  How do I remove that protrusion?  I would think I want to trim the arm end to the inside surfacScreenshot 2015-09-04 00.20.20.pnge of the cup...but I can't make that happen.

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