Fix model problem caused by cutting component?

[nickchun]

Hi All

I get occasional reports of a problem when saving a model and always allow SU to 'fix' them. Sometimes however it cannot be fixed and the problem recurs upon each save. I usually then resort to ThomThom's 'Cleanup' plugin, which almost always works. When things go particularly wrong I notice that the ceiling in my model( I am designing kitchens) gets erased as part of the cleanup. The ceiling is made of a simple rectangular solid into which are placed recessed light components( my own) which glue to horizontal and cut themselves in. I group the ceiling first, then in edit mode place the lights.
Is it possible that this kind of intersecting geometry is causing a problem?
As SU does not highlight the offending geometry in a way which is recognisable to the user this becomes difficult to rectify.

Thanks

Nick

[slbaumgartner]

Especially if they have small parts, it is possible that the lights are causing SketchUp's cleanup operation to merge nearby vertices and thereby lose small edges and the faces they would bound. That can potentially cause errors that SketchUp tries to fix. Losing the ceiling indicates that some part of the fix caused that face to be discarded, possibly because "fixed" points are no longer coplanar.

You are right that the fix log was written by Trimble programmers for use by Trimble programmers. It describes what it finds by reference to internal C++ objects that have no meaning to the user, and it does not show you what caused it to deem your model to have issues. I regard the log as pretty close to useless and wonder why they bother to display it.

[nickchun]

Thanks, I have had a look at the components but they do not have what I would consider small parts.
It's still a bit of a mystery.