Hello everyone, I’ve started a Dynamo script to delete unused families in Revit. I’ve managed to get a list of the unused families, but I haven’t found the necessary Dynamo node to retrieve the families along with their IDs so that I can delete them using the ‘families deleted’ node. Thanks for your help!
Hello @alienau2016
Instead of filtering the names, just filter the families themself 
1 Like
thank you a lot gerhard , solved ! 
Your welcome, everyone has made that mistake before^^
I like to keep a straight wire between the desired elements and the filter by bool mask node, i just move down all the nodes that are just for bool mask calculations, so it´s more obvious for me whats going on.
Like that:
1 Like
