Duplicator 4x Anular Fan Duct

myminifactory

I decided to leave the left hot end off after cleaning since it was the only thing blocking me from using an annular cooling duct. This setup works great, allowing airflow from all 360 degrees. I'm currently using the Flexion extruder/hot end configuration on my Wanhao Duplicator 4X, but there's no reason why this wouldn't work with a standard printer - I just haven't tried it yet.