Delete Unused families in revit

[alienau2016]

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!

[gerhard.p]

Hello @alienau2016

Instead of filtering the names, just filter the families themself

[alienau2016]

thank you a lot gerhard , solved !

[gerhard.p]

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: