https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250829#M32765 Thanks for the feedback and the solution. Wed, 10 Jun 2020 21:52:53 GMT Laszlo Nagy 2020-06-10T21:52:53Z https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250824#M32760 <DIV class="actalk-migrated-content"><T>I have been having a bunch of problems with .dwg export, specifically with lines not cleaning up. Lately I have been trying to export "core only" to our structural engineers (due to some columns floating in walls beyond the core), and I have noticed that I cannot get lines to clean up. The more I looked at this, I am noticing that this is happening in instances where I am not using 'core only'. Has anyone else had this problem or is there an easy workaround? Thanks in advance!<BR /> -Chris</T></DIV> Fri, 05 Jun 2020 18:44:39 GMT https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250824#M32760 Chris Grantham 2020-06-05T18:44:39Z https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250825#M32761 There are probably connecting structures that cause those gaps.<BR /> Probably they are on hidden layers.<BR /> You could change the intersection group number of those Layers (so they do not intersect - elements intersect only with elements on Layers with the same Layer Intersection Group number), and save that state as a Layer Combination since when you are not displaying this core-only state, you would probably want these elements to intersect properly. Sun, 07 Jun 2020 10:13:46 GMT https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250825#M32761 Laszlo Nagy 2020-06-07T10:13:46Z https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250826#M32762 That is a great idea for the second example... but what about the first "core only" example? Those are walls on the same layer? Mon, 08 Jun 2020 23:06:00 GMT https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250826#M32762 Chris Grantham 2020-06-08T23:06:00Z https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250827#M32763 Yes, but there can be other walls in hidden layers that still intersect with the visible walls. And a skin in the wall in the hidden layer has a Building Material with a higher Intersection Priority than the skin which has the broken boundary. Make all layers visible and show the Entire Structure so you can see what intersects the wall at those points. Tue, 09 Jun 2020 00:03:50 GMT https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250827#M32763 Laszlo Nagy 2020-06-09T00:03:50Z https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250828#M32764 I think I figured it out... i had separator lines turned off! It still leaves a bunch of little line segments in .dwg but that should be resolved when delete duplicates and consolidate my linework. Thanks for your help! Tue, 09 Jun 2020 16:24:21 GMT https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250828#M32764 Chris Grantham 2020-06-09T16:24:21Z https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250829#M32765 Thanks for the feedback and the solution. Wed, 10 Jun 2020 21:52:53 GMT https://community.graphisoft.com/t5/Collaboration-with-other/DWG-Line-Export-Problems/m-p/250829#M32765 Laszlo Nagy 2020-06-10T21:52:53Z