Cooling duct for Easy3DMaker

thingiverse

This part replaces the nozzle cover on the Easy3DMaker printer. The original design falls short because the fan is positioned too far from the print area, blowing air only from behind. As a result, you must rotate the printed item to ensure the most overhanging parts receive airflow. This replacement not only directs air directly onto the print around the nozzle but also maximizes coverage by splitting the airflow into two separate ducts facing each other. It is designed as a direct replacement for the original metal cover, and the original screws can be used for mounting. Note that there's no space for a nut on the fan screw, but the fan fits snugly in place and the screw holds it securely without a nut. While not ideal, this design prioritizes airflow over a perfect solution. Warning: This component gets very close to the nozzle. I printed it with PLA, which worked fine, but once I started an ABS print, the duct began to melt. It is strongly recommended to print it using heat-resistant PLA (or ABS, though that's more challenging). Print Settings: Printer: Easy3DMaker - modified Rafts: No Supports: Yes Resolution: 0.25mm Infill: 20% Notes: Nozzle: 0.5mm, Filament: heat-resistant PLA, Brim usage is strongly advised. Post-Printing: Only generated support and/or brim needs to be removed. How I Designed This: I created it in Blender, going through several iterations - at least 10 - before arriving at the current design, which seems effective. Not being an airflow expert, my approach was based on trial and error. The straight wall design isn't ideal; air flows towards me, collides with the wall, and then exits at the bottom. Maybe directing it with a slope would improve airflow.