I have an Ego 530 blower and wanted a more directed airflow. I found this model but wanted a more focused, so I merge it with the models https://www.printables.com/model/33596-ego-leaf-blower-nozzle-attachment and https://www.printables.com/model/587770-ego-blower-venturi-nozzle
Used tinkercad so it isnt the best but it does work well. I printed mine in Sunlu Easy ABS. (which I use PETG settings)
Ignore the stringy hairs, from not having good retraction settings :).
The author remixed this model.
Merged the venturi attachment and this one to be able to have an easy clip. https://www.printables.com/model/33596-ego-leaf-blower-nozzle-attachment