Raise3D N2/N2+ Front Mounted Blower Fan for Left Extruder

thingiverse

Made some changes to Firesped's bracket to suit my needs, and I'm uploading it here in case others have similar wants. Modifications came from this link: https://www.thingiverse.com/thing:2089681: -Rearranged the duct to aim more at the left nozzle instead of being between them; I rarely use the right nozzle. -Used Toby's duct (http://www.thingiverse.com/thing:1355622) because I liked its airflow and taller socket for the fan, and repaired the gap in the model. -Slightly reduced the size of the fan socket to make it easier to fit. -Moved the mount screw holes so the duct is 1mm closer to the heater block to increase tolerance for clearing the model. -Removed the round cutouts that surround the throat tube set screws to make it compatible with later extruder head revisions. You'll probably need a high temp material or an insulated hotend to prevent melting of the duct. I made mine with PLA and it doesn't melt while printing PLA with a lightly insulated hotend (silicone/fiberglass cable sheathing). The same hardware as Firesped's bracket is used here: -12V 50x15mm blower fan (https://www.amazon.com/Connector-Cooling-Blower-50mmx15mm-uxcell/dp/B00MJU6JR2) -2x 16mm and 2x 20mm M3 socket cap screws https://www.amazon.com/Hilitchi-210pcs-Stainless-Socket-Assortment/dp/B014ONCP88 -2x uxcell M3 3x4x4.3mm thread inserts https://www.amazon.com/uxcell-Female-Knurled-Threaded-Embedded/dp/B01IYWUZ46