Wanhao Duplicator i3 Fan Duct
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This cooling fan upgrade will enable you to easily enhance your system's airflow by installing a high-performance 12V DC 50mm blow radial cooling fan. https://www.amazon.com/dp/B00MJU6JR2/ref=sr_1_fkmr0_1?s=pc&ie=UTF8&qid=1476920027&sr=1-1-fkmr0&keywords=12v+dc+50mm+blow+radial+cooling+fan To install the fan duct, simply mount it around your Wanhao Duplicator i3's original cooling duct using the screws from the existing fan. A M4x20 screw (or longer) will secure the new fan in place. For optimal hotend performance, use PID heat management. This guide explains how to set up PID heat control for best temperature regulation of your hotend, regardless of the cooler you choose. https://www.youtube.com/watch?v=ki-JOwre82Y Edit 11/13/16: The upgrade now includes a fan duct to easily switch from a 40mm fan.
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