Dear Kevin,
Thank you for your new query.
Glad the previous answer helped.
Thanks to Revitalizer for his valuable suggestion.
Afaik, there are in principle two ways to achieve what you need:
- Place fittings programmatically, connect them, and Revit will auto-generate pipes and ducts to do so.
- Place ducts and pipes programmatically, connect them, and Revit will auto-generate fittings to do so.
Revitalizer's suggestion refers to the former case.
Both approaches are demonstrated by the sequence of rolling offset samples:
http://thebuildingcoder.typepad.com/blog/2014/01/final-rolling-offset-using-pipecreate.html
I hope this helps.
Best regards,
Jeremy