I would like to tell you about another online resource for CAD users. It is CAD Forum. It is an online forum discussing CAD issues and procedures. I have found help there and I have been able to provide help to others too.
CAD Forum is a Czech-based website available also in English and German. It contains 1.600+ free CAD tips and tricks for AutoCAD, Civil 3D, Revit, etc., discussion forum, CAD blocks library (incl. 3D blocks), free utilities and other CAD resources.
I recommend it.
