Today I attempted to convert a 3D drawing to 2D several times. When I opened the 2D file there were elements everywhere except where they should have been. Other objects don't display at all. I tried converting with 'Preserve Z range' turned off & again with it turned on, it didn't make any difference at all. What am I doing wrong? Also, part of my drawing consists of C sections of metal that support a frame, braces are bolted diagonally accross the frame from the top hole of one leg to the bottom hole of another. How do I draw or rotate the brace so that it's holes are aligned with the support legs?