My design of a basic fang style single plenum fan duct. the two back plane screws will need socket head cap screws. Tested to 70`overhang as pictured.
Duct 7 gives a lot more clearance from heat block for printing it in pla
08/11/2019 upoaded fusion 360 files so you can customize for yourself.
MAKER SERIES PETG
Model drops to bed oriented to print using !! SUPPORT TO BED ONLY !!
You may need petg due to the close proximity of fangs to heat block.
I recommend a silicone sock as well.
It has had basic testing.