Dynamo script working in Models Project but not working in Family Project

[jacob.small]

@vagos3222

The outcome should be each version of this object in rfa format with a unique naming containing dimensions of the object in its naming.

This isn’t how Revit works.

You would want ONE family with 25 or 400 types, all managed in a type catalog. Better still: it can be done very efficiently without the use of Dynamo. See here: Help