Hot End Heat Sink Fan Duct for Zonestar P802Q (Prusa i3)

With this fan duct you can improve the hot end cooling of a Zonestar P802Q. The fan duct was designed for a hot end heat sink with a diameter of 22.2 mm and a 40 mm fan (= original parts of P802Q). As you see on the pictures the fan duct will be installed inside of the metal box of the extruder. The installation is a bit tricky because there is not much space. I considered the screw head of the X-bearing (SCS8UU) and the rectangle nozzle heater. That's the reason for the dimples and asymmetric d