Ender 3 hot end upgrade
prusaprinters
<p>This upgrade has been designed to be printed by a resin printer. The fan dock fits a 4020 blower fan (24V to fit the ender 3 stock or v4.2.7 board) with half of its case removed. (Aliexpress <a href="https://www.aliexpress.com/item/1005001709266697.html?gatewayAdapt=glo2fra&spm=a2g0o.order_list.0.0.21ef5e5b5gQhxx">link</a>) The fan exhaust is not tuned to perfection and works best without the silicon sock installed on the heat block.</p><p>This assembly fits the original extruder back support plate.</p><p>You will also need to tap M3x0.5 and M5x0.8 threads in multiple locations.</p>
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