Forums >> Revit Building >> Technical Support >> Lines Are Not Overlapped.

OzMan

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Help, I'm trying to change the trim around doors and windows by editing the door and window families.  Revit is insisting that the line all the way on the right is overlapping with the line right above it.  But they're not overlapped and I'm stuck.  I can either throw the changes away or keep on checking the lines that Revit thinks are overlapped.  Check out the attached dwf and if this question doesn't make sense, let me know that too.

Revit Architecture 2008,

Thanks,

Oscar

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WWHub

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I see a lot of overlaping lines.  When you do extrusions, the perimeter must be one continuous grouping of lines end to end.  No other line may touch this outside perimeter.  You can have as many "holes" as you want in this extrusion by having a grouping of continuous lines within the perimeter of the overall extrusion.... again - no lines may touch these lines.  (Think AutoCAD closed polylines and no polyline can touch another polyline)

It looks like you have some flat trim with some dividing trim that is probably a different thickness.  Seperate these elements into seperate extrusions. 

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OzMan

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Got it.  I'm treating a continous one piece trim, with several different size of extrusions.  If I understand you correctly, I need to handle each extrusion seperatly and place it within the trim configuration.  I'll do it this way and see if it works.  Thanks again for the good tip.

 Oscar

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OzMan

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Well that didn't work.  Changes were not saved, so when I went back to the elevation after making the change in the family, nothing changed.  I wanted to make the first horizontal trim (above the side trim) thicker than the side trim.  I thought I could do that with a wood extrusion after changing the side trim?  I'm I correct in thinking I should handle the trim as seperate pieces?

 Oscar

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WWHub

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I suggest you test by opening a new family and doing some simple extrusions.  It really works well after you understand it.  From within an existing family, you may have other problems.

You are right, each extrusion that is different in depth or starting - ending points.   But for some things, you may stack extrusions then use join geometry to put them together.

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OzMan

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I'm not sure I understand.  I tried opening a new family with both a door template and a generic wall base template but could not make the trim look custom.  Could not make side trim sloping, only straight up and down or sideways.  I also could not make the extrusions above the door, the same material as the side trim.

 I don't know what I'm doing wrong.  Maybe I need another lesson on modifing families.  Any feed back will be appreciated.

Oscar

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WWHub

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You probably need to follow some of the tutorials in the REVIT handbook.  If you don't have that already, you can get one from AutoDESK.  They don't ship it unless you ask for it.

Sometimes extrusions work best, other times sweeps or revolves will work and you can always add voids to an extrusion, sweep or revolve.  Spend some time with these and you will cut your frustrations way down. 

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OzMan

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Thanks, I'm sure a Revit review wouldn't hurt.  Somehow, I'm missing something with your last explination, because I couldn't make the trim slope and changing trim width was not easy.  I'll continue to play with it until I get it.  If there's anything else you want to add, feel free. 

I'll check about that Revit book from AutoDesk.  I did not know about it.

Oscar

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