Filabot Fan

thingiverse

I noticed that Filabot started putting a fan on the EX2 to cool the barrel and hopper creating more of a cold zone before the extruder barrel, i don't have an EX2 i have the Filabot Original but i could still see the benefit of adding a fan. They will install this fan if you ship your EX2 back to them, and kindly part with $130 in the process. All well and good but i don't see why this can't be a customer installed upgrade so i designed my own from scratch. I used a 60x25mm Delta 24v fan, connected directly to the power supply screw terminals. To mount it you take the lower bolt out that holds the hopper/extruder assembly to the motor mount. It was easy enough with an allen wrench and a 11mm wrench. Then put the bolt through the duct bracket and reinstall the nut on the back and tighten it back up. Use the Duct to get the angle of the bracket set right by just holding it up against the bracket and adjusting it until the duct is sitting vertical on the outside edges. Then slide the fan down in behind the bracket and use four screws through the duct, the bracket, and into the fan. I just used some PC fan screws i had in the junk drawer. The fan i used is a AFB0624EH Delta 60mm x 25mm Fan, they are available on eBay for $8.50 and have plenty of lead length to reach the power supply terminals. And the airflow is amazing from these little fans. Keeps the cold zone cool enough to touch, still warm but not scorching hot like it was before! All in total it took about 20 mins to install after printing the parts. If you want you can add a fan blade guard to the front of the fan, i didn't consider it necessary since its pretty hard to get your fingers in there once the side is back on. You have to remove both sides to install, the other side gives access to the power supply terminals. If you have an EX2 i still suggest you take advantage of Filabot's offer to install this mod, but if your just looking to add this to the Original Filabot or you want to give it a go on your own here is my design, it works!