A parts cooler bracket / holder for the Anet A2.
Rear mount (so it doesn't obstruct view of print and looks better).
Blower 50x50x15 (http://a.co/6omY7mc) (higher CFM vs 40x40x10 fan).
Easy to install (use existing mounting bolt locations).
Wide air path distribution (I read parts prints better vs narrow nozzle).
Easily adjustable for Y and Z positions.
Simple to print (without needs of support).
The two rear M5 bolts on the X platform needed to be lengthened to provide for bracket mounting.
While I was at this, I insulated the heating block with these 2mm tick Heating Block Cotton sheets.
Design oversight -
I ended up not using screws to mount the blower, tolerance was too tight. The screw head ended up getting too close to the bed on the blower under side and the other end of the screw too close to the under side of the X gantry, and the screw length had to be specially sized. None of these were good options. I ended up using hot glue and works great. There are now about 5mm of gap between lowest part of blower to the print bed.
Design concerns -
The blower air in-take is on the under side, not sure if this could pickup loose filaments and gets sucked into the fan fouling it and the print.
Adjust air ramp length as required
The Air ramp was designed to be longer than need be, meant to be trimmed to your liking after dry fitting. I removed 10mm on mine. Simply cut of the excess and file to tapper the end.