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    Void extrusions turn orange!

    Void extrusions in a family. Revit 2015. Why does it turn orange and not cut the geometry??? When I try to cut it manually, it tells me "cannot keep joined". I've done this a number of times around this project and sometimes it works fine, and other times turns orange and refuses to do anything. I've been fighting with this section for 2 days. Please help!
    Attached Files

    #2
    Perfect example here! The curly cue void extrusion on the left worked just fine. It's a void of 1/16". I mirrored it directly to the other side, and POOF, f-ing orange again! Whyyyyyy! Somebody please explain this! Wit's end here!
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      #3
      When a void fails to cut it means that Revit is calculating based on something else being present that creates a conflict or that the solid affected by the void will result in a form that Revit can't generate.

      It's also possible that the void doesn't come into contact with a solid, for example when the work plane it is associated with flips its orientation. In such a case you will have to adjust the void and then use Cut Geometry to get that interaction to occur. A void will automatically cut a solid when comes into contact with that solid when the void's sketch is completed.

      Since you are using mirror, edit the sketch of the void that works, copy the sketch to clipboard. Paste that sketch into a new void and move it into the correct location. It is possible that mirror places the void poorly relative to the corner of the solid form. In other words the mirror tool may not be using an axis of reflection that is not precisely in the center between where the voids should be.

      If void sketches are on top of another void or solid sketch it is quite likely it will fail to cut or join. Try to ensure that solid and void sketches cross one another cleanly or are precisely the same segments when they must be co-planar.

      It can be quite difficult, at times, to deal with when you are adding more and more voids to fine tune a shape.
      Last edited by Steve_Stafford; May 16, 2017, 04:38 PM.

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        #4
        Thank you so much for the help. I was able to use Cut Geometry for the lower mirrored void successfully. But am unable to cut the others. I'm trying to figure out where the "precision" may be a problem. These are on top of others voids and blends. Any advice for getting them to cross cleanly?

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          #5
          You can try putting the void in the wrong location and move it closer to the correct location...via nudging (arrow keys)...and see when Revit complains about the join/cut relationship.

          You might also consider that, in many situations, a 1/16" void could be replaced with a thin line hosted by the surface of the form. In almost all views of the element in the project it would be nearly impossible to tell a 1/16" thick void is actually cutting a solid. It might even end up looking too thick because the void will create two lines where a line is just one.

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            #6
            Thank you, Steve. I like that idea. So stupid question bc I haven't done it before, what would you use to draw the simple lines hosted by the surface? Just model lines?

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