Adjustable 2-in-1 fan duct: extruder and filament cooler for E3D V6

Just a simple modification that may help with first layer issues or when work cooling not required. Place closed gate/valve in and when/if required pause printer and replace with open gate/valve. Or as I have found in use if gate does not foul anything move it in or out to control air flow.

P.S if you rotate duct in thingview you will see how it works ;)

Added V5 Same tolerance as used in original model so should be ok

Pic shows V5 version. Heatsink diameter is 24,64mm and fits nicely.