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    "Odd" Subtract Behavior - Is This Solvable?

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    sketchup
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    • B Offline
      babolding
      last edited by

      I have two pieces of modeling (as seen in file attachment)- one a long molded beam and the other a small shaped piece (on right) to be used to subtract an area from the long molded beam. The pieces in file are in the location to be used for the subtraction. I have tried this about 30 times - twice was somewhat successful - but left stray faces/lines, added "defects" in the beam mesh - or incompletely subtracted. The other times it just wouldn't perform any subtraction. Am I missing something? I used thomthom clean up/solid inspector on the front end to check the meshes. Any comments and/or tips would be helpful. Note that I'm an intermediate user of SK... THANKS IN ADVANCE

      SK8
      Windows 7 Home Prem/64 bit
      Intel i7 2.80 GHz
      12 GB RAM


      SK8SubtractIssue.skp

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      • Jean LemireJ Offline
        Jean Lemire
        last edited by

        Hi Babolding, hi folks.

        There are edges in some arcs that are very small, around 1/16 inch. SU has problem handling such small edges and most importantly, creating faces when one or more of their edges are smaller than about 1/16 inch.

        Try scaling by a factor of 10 or 100 before doing the subtraction, then scale down accordingly when done. Faces will stay closed when scaled down even if their edges are reduced below the lower limit. It is only on their ceation that problems arise.

        Just ideas.

        Jean

        Jean (Johnny) Lemire from Repentigny, Quebec, Canada.

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        • B Offline
          babolding
          last edited by

          Thanks very much Jean...that definitely solved issue

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