Lucky 7 Blower Duct for E3D v6 Hot End (Rostock MAX / Orion)

If you have an E3D mounted under your effector, you can use three of SeeMeCNC's little blower fans with three of these for part cooling. I've seen overhangs of up to 70 degrees print relatively clean with no support (65 more reliably).
.
You can get the blowers here: http://seemecnc.com/collections/parts-accesories/products/30mm-x-10mm-blower-fan
.
If you don't already have part cooling, just print at 20mm/sec with no support. They should come out just fine. I recommend a layer height of