This is the correct workflow:
Family 1 is the pile. Family 1 should be set to "shared". In Family 1, create a shared parameter "pile dia", by instance, to control the diameter of the pipe.
Family 2 is the cap. Family 2 is not shared. Family 1 is loaded into Family 2. Place the piles (Family 1) as many times as necessary, at the correct places in regards to the cap; align and lock, etc. Now select all the instances of Family 1 (the piles). From their instance properties, find the "pile dia" parameter, and click on the small rectangular button next to the name of the parameter, to associate this parameter, to a new, local, "pile dia" family parameter (not shared) (by type or instance) in Family 2.
Load Family 2 into project, and place some instances. In the project, you can change the diameter of the piles by changing the family parameter included in Family 2. And now you can schedule the diameter of the piles.
This workflow is for the diameter. You could/should do the same about the length of the pile.
Alfredo Medina _________________________________________________________________ ______
Licensed Architect (Florida) | Freelance Instructor | Autodesk Expert Elite (on Revit) | Profile on Linkedin
