FLSUN Cube Part cooling duct

Part cooling duct for FLsun Cube 3D printer.
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Created from scratch this cooler mounts on the standard hotend cooling fan.
there are two versions of the STL, one for the default 40x10mm fan and another for anyone who has changed their fan to a 40x20mm.

You should not need any supports, the part creates its own.
###Requirements:
Designed for FLSUN Cube printer with default hotend, x carriage and Z-probe.
50mm blower fan, Example: https://www.coolerguys.com/products/evercool-50x50x15mm-high-speed-blower-fan-ec5015hh12ea-b

###Directions:
- Current Design only takes into account that the hotend heatblock is pointed towards the front of the printer(heating element on the same side as the cooling fan. Later I will look into designing alternatives for the heatblock being in all positions.)
- Take care to choose the correct STL:
- 40x10mm fan is for the default hotend cooling fan.
- 40x20mm fan is for anyone wh