Push Pull Triple 4010 Fan Extruder Printhead- Voxelab Aquila

thingiverse

<h1> Updated 1.18.22 </h1> <h1> Fixed mounting alignment </h1> <h1> An obstruction from a screw head on the mount plate is no longer an issue. </h1> I bought some RGB Winsinn fans for my Aquila in an attempt to quiet it down being in my room, but became aware one of those for the hotend may not be as effective at cooling as the stock one, airflow being the issue with lower RPM for quieter operation. I didn't want to battle with heat creep, and it would be fun to design a custom printhead anyway. I remembered how custom PC coolers can benefit from a push/pull configuration and designed one myself to achieve that here. This thing is designed so air can go across the width of the printhead, instead of from the front to the back and out the sides. The top fan is attached to an air duct that is minimally invasive to the cross airflow and directs it down and towards the nozzle for print cooling. There is a notch at the top of the frame for a ziptie to keep the cords in place, and a channel below it on the inside for the fan wires to follow. I spliced the wire going to the old hotend fan using red crimp butt connectors, which go to the new two 24v fans on the sides. The top fan I had to cut and crimp as well, that one goes to the yellow and blue wires that used to be on the blower. The black wire goes to the blue wire, and the red wire goes to the yellow wire. 4010 fans (40mm x 10mm) fit snugly in place and use M3 screws to hold, but I drilled them bigger because I wanted to use screws I had on hand. It may be compatible with an ender 3 hotend but can't confirm myself. It was brought to my attention by @Leathal_R3dN3ck that when importing the STL's into your slicing program, it can come in incredibly small. I used blender to create this and am not quite sure why it didn't scale properly. To correct this, you want to scale it up 100,000%. Cura does that for me automatically. Some addons for this thing: BLtouch Mount by @EyeforThis https://www.thingiverse.com/thing:5007611 CRtouch Mount by @EyeforThis https://www.thingiverse.com/thing:5007598 40mm Aperture Fan Grille by @mightynozzle https://www.thingiverse.com/thing:2802474