Awning Family Louver Rotation

[Anonymous]

I am having an issue in creating an awning family with angled louvers inside a frame. It works as expected, except if I set a Type Parameter for the angle of the louver to 90 degrees - the louver will set to the angle intended, but the next time I change the angle, Revit says the constraints are not satisfied. Can you help me understand this angle locking issue?

Thanks

[barthbradley]

Weird. I cannot open file in either 2018 or 2019, but I can see thumbnail.  Must be "Hump Day". Going downhill.  

[Anonymous]

Running 2019 here and I can open it from download. Cheers to sHlump Day 

[barthbradley]

Okay, got over the hump and was able to open it.  Nest the louver into the family, hosting it to a Ref. Line which is labeled with an angle parameter.   

[Anonymous]

So does the louver need to be a Generic Line-Based family?

Should the host Ref. Line be parallel to the rotation axis (louver rotates around host line) or perpendicular to it (louver rotates with host line)?

Thanks

[barthbradley · Accepted solution]

Hard to explain in writing what to do, and I can't take the time to build it to show you. But, I'm going to offer you something of greater value.  Read and follow the instructions in the link below, and I guarantee you will take away from it the best foundational knowledge to build any family of this type.  

Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime. 

http://planta1.com/blog/rotating-a-revit-model-family-in-3-different-axes-by-reference-lines/

p.s. you don't need 3 levels of nesting for yours, but the basic principals still apply.  

[Anonymous]

Wow, great resource!

Thanks for the pointer.

[Anonymous]

@barthbradley Thanks again for the resource, I was able to figure it out. Here's what I ended up with: