Maybe this issue have been discussed before but I haven't found it yet.
I have discovered what I would call a major issue in Revit MEP and now I would like to hear what you think about it.
Revit 2013. Create a Floor Plan View. Detail Level is set to Coarse. Visual Style is set to Hidden Line.
Draw two parallel Pipes with a distance of 150 millimeters or smaller. Pipe size is up to you.
If the Offset value is the same there is no problem so you have to change the Offset value for one of the Pipes.
Add the Floor Plan to a Sheet and you should be able to see the two Pipes as single lines.
The problem happens when you print this Sheet. The lowest Pipe will be hidden. It happens in Preview, PDF print, hard copy, DWF Export.
It is the same with Conduits.
Back to the headline. What You See Is NOT ALLWAYS What You Get and that is the problem bacause the Sheet looks fine in Revit.
The solution Autodesk came with was to print as a Raster but this solution is useless because the quality isn't as good as Vector and you can't get any properties i Design Review because it's a picture.
My test project is attached and also a DWF Export.
I would like to hear any comments from you about this issue.