Using ZWCAD or AutoCAD you can create infinite fitting configurations for Piping, HVAC and more. Here is an example of how to create a 3D Pipe Flange and Elbow with simple to use dialog interface.
Compare this video to http://www.youtube.com/watch?v=_t2Br2Qn0Jo
See also https://www.cadavenue.com for more about our engineering software
