how to do storefront corners?

[Dave Lewis]

How do I make the storefront frames to be 45 degrees in the corners
See attached .jpg

[Steve_Stafford]

The type of corner you want is still somewhat elusive in Revit's default corner mullion types. This THREAD (http://forums.augi.com/showthread.php?p=285795) might be useful. David has created a family to use for this condition. Other folks just model column family in these locations and use a butt joined (small square mullion matching the thickness of the glazing) to join the glass in the corner.