ReMark Posted June 27, 2013 Share Posted June 27, 2013 If that's what you expect is at the root of the problem then I'd recommend you refrain from doing it. You'll have to find a workaround. Quote Link to comment Share on other sites More sharing options...
JD Mather Posted June 27, 2013 Share Posted June 27, 2013 .... So I was wondering if anyone knows what causes this. .... As I indicated in this thread - from my experience the root of the problem is having solidhist turned on. While this allows your to edit features more easily - multiple posts on this problem shows that experience indicates that somehow the base solids are recovered when that is not the users intention. We turn it off in our template and never see this problem. Interestingly, Autodesk Inventor is feature history based, yet I have never seen this problem in Inventor and in Inventor I can easily fix an AutoCAD file that exhibits this behavior. Quote Link to comment Share on other sites More sharing options...
neophoible Posted June 27, 2013 Share Posted June 27, 2013 Interestingly, Autodesk Inventor is feature history based, yet I have never seen this problem in Inventor and in Inventor I can easily fix an AutoCAD file that exhibits this behavior.That's great, JD! So, what's the method one needs to use to easily fix an AutoCAD file like this? Quote Link to comment Share on other sites More sharing options...
Patrick Hughes Posted June 28, 2013 Share Posted June 28, 2013 Here's a few ideas (and they're just ideas because I'm on a much older version of AutoCAD). 1) try saving it to an older version 2) save it out to dxf then open new and dxfin 3) save to step, or iges (whatever recent AutoCAD releases allow you to, then import into a new drawing. 4) any other formats that will retain the solids but not the history. Quote Link to comment Share on other sites More sharing options...
SEANT Posted June 28, 2013 Share Posted June 28, 2013 Also, What happens if you use the BREP command on those solids? Quote Link to comment Share on other sites More sharing options...
Jimmy111 Posted June 29, 2013 Share Posted June 29, 2013 BREP does nothing. I use that all the time to delete history from finished models. But once the model has mutated it does nothing. Saving the model to step or any othor other format leaves it un editable as a solid. So for my purposes is useless. I have this problem very infrequently and generally I save all modifications step by step. But it would be nice to know what causes this and if anyone ever came up with a way to fix the problem. Not just repair the damage. Quote Link to comment Share on other sites More sharing options...
SEANT Posted June 29, 2013 Share Posted June 29, 2013 (edited) If you can, post the solid when you come across another of these anomalies. I'd like to look at it with some programming tools that are not exposed to the drawing editor. Specifically, the BoundaryRepresentation API shown below. Edited June 30, 2013 by SEANT Quote Link to comment Share on other sites More sharing options...
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