Dual Cooling 40mm Fan Attachment for Kossel Mini

This is my first design using DesignSpark Mechanical - a free cad program that I recommend for beginners. It is a 40 mm fan attachment for Kossel Mini with J-Head Hot-end. I split the airflow in half, the top parts cools the PEEK of the hot-end and the bottom half flows in two channels around the tip of the hot-end and is directed at the printing nozzle.
The attachment also contains the attachment piece for the J-Head to the Kossel Mini effector and uses three 3mm screws.
The fan is attached using self taping screws directly into the plastic. (I printed in PLA). The attachment has four 2 mm holes that can be enlarged if needed.
I also added the DesignSparkMechanichal source file (.rsdoc) if it helps.