I'm trying to make two custom moldings miter at the corner. The molding in blue is a polyline solid. The white molding is a molding polyline (I couldn't figure out how to get that molding to be a polyline solid, on an angle). How can I get them to miter at the corner? I tried turning them into primitives and using the subtraction tool, but it didn't work. I've posted the plan in case anyone wants to take a crack at it. Thanks
gutter rake house2.plan