Anycubic Kossel Fan Duct

thingiverse

After rebuilding my delta, I noticed that the airduct had meltd and was blowing directly at the heat block instead of down toward the print. I looked through the avialable duct designs, but I didn't like most, which were a bit too genreal with airflow. So, I made this duct, focusing airflow towards the base of the nozzle from 4 lateral openings. Updated: version 2 has larger vent opening and I added vent at the rear of the nozzle. Initial testing shows a decrease in overhang stringing, so the changes have definitely improved performance and airflow.