Aquila/Ender Fang & Duct combo, with light

thingiverse

Minimal hotend and nozzle fan ducts for Voxelab Aquila, Ender 3, CR-10, and similar (though only tested on Aquila.) Uses 4020 or 4010 hotend fan, 5015 blower nozzle fan. I needed two things: a fan system that didn't interfere with the direct-drive motor above, and the ability to see the nozzle, something that isn't supported terribly well for some reason. I liked <a href="https://www.thingiverse.com/thing:5217146" target ="_blank">vortexpc</a>'s minimal main duct that is sandwiched behind the hotend, but it was a little flimsy for my ABS layer adhesion and kept failing, so I reworked it a little thicker and sturdier, but all credit to him for the design idea. <a href="https://www.thingiverse.com/thing:4749870" target="_blank">Cacti</a>'s side-mounted nozzle fang was what I was looking for, but I didn't want dual fans, so it was reworked into a single fan unit - again, main credit to Cacti. And then, the addition of a bar underneath to mount an LED light strip so I could easily see if there were any issues during print - every printer needs this, as far as I'm concerned. But there's a version of the fang without the light bar if you like. The two parts are an easy print, but support is necessary at least for the fang unit - I'd suggest both. [The STL of the duct differs from the one shown in the photo, since I upgraded the wire-tiedown on the side.] They should mount together easily with a pair of 3mm bolts, 8-12mm in length - they protrude into the duct intake area and thus length isn't too much of an issue. The lighting is just a flexible strip of 24v LEDs, a single section of which was 50mm so that's how long the light bar is - I connected them into the same wiring as the hotend fan which is always on. I don't trust the adhesive backing of those so they're affixed with contact cement (E6000.) I also used a glob of hot glue to anchor the solder joints firmly and insulate them against accidental contacts. The grey velocity stacks (intake bells) are not included, and I don't even recall where I got them from - season to taste.