Hello all. I am fairly new to 3D family creation and am having some problems getting this to work! I am trying to create a void within the OOTB W-Wide Flange beam family (or any beam family for that matter) so that I can apply a plumb cut to the start or end. The problem I am having is when I try and apply a parameter for the angle of the plumb cut. I have created the void without a problem, it is simply the constraints which are giving me problems. I've attached images of what I have been trying. When I apply the parameter to the angular dimension I get error warnings that the constraints cannot be satisfied. I've aligned and locked the vertical and horizontal legs of the void extrusion to the appropriate reference planes such that the void flexes properly with the family. However, it seems that Revit is trying to rotate the reference plane to meet the angular parameter rather than rotating the angled leg of the void extrusion. This seems to occur whether I place the angular constraint in the "Extrusion Editor" or outside the editor in the family itself.
What am I missing here? Your input is appreciated!