My goal was to cut down weight, and remove the noisy front fan. I find that a single 5015 is enough for most of my cooling needs and wanted a quieter option so that I can have my printer in my office.
The author remixed this model.
Removed front fan, shortened shroud and converted right side blower from part cooling to hot end cooling.
Flattened front face for easier printing.
Strengthened armature mounting holes.
Simplified some geometry.