E3D part cooler (somewhat customizable)

thingiverse

I designed a custom duct for E3D using OpenSCAD, taking advantage of the flexibility it offers compared to models created in Blender or SolidWorks. Those shapes often don't adapt well to my MakerGear M2 3D printer equipped with an E3D titan extruder. By including the CAD model as an OpenSCAD file, you'll have more freedom to modify it and make it fit your specific needs. To print this duct successfully, I recommend printing the entire piece with support material. Then, break it into smaller sections - yes, you read that right! - which will allow you to remove the support easily. Once separated, use acetone or methyl ethyl keton to weld the parts back together and smooth out the airflow path. The airflow from this duct is decent, although it could be improved. I've managed to achieve a sufficient flow rate by connecting two 12V fans in series to my 24V fan supply. Since I didn't use any software to simulate airflow, feel free to experiment with the form functions in the .scad file and optimize the design for better performance.