OK, I give up... days of trying, watching videos, and I still can't hook a duct up to a fitting unless Revit wants to. It's totally hit or miss (usually miss).
My present challenge:
Hook a 12 x 6 rectangular takeoff to a 12 x 6 mitered rectangular elbow about 4' away horizontally with a 12 x 6 rectangular duct. I've aligned the elbow with the takeoff vertically and horizontally. They are the same profile, and aligned perfectly, and still I can't run a duct from the blue dot on one to the dot on the other.
What gives? Why is this so hard to do?!
I know I have to set up some setting somewhere, but I need a push in the right direction.
Thanks in advance for any ideas!