3d printer fan duct

thingiverse

I have ultimaker2-like 3d printer, which is quite similar to the regular ultimaker 2. I try to make the air flow more focusing on the nozzle region rather than the surrounding region. Also, I made shaped the path of the air flow in the way that the two output air flows are as even and symmetric as possible (and this part still printable using a one head printer). Unlike the original ultimaker2 duct which is made from metal, this is plastic. So I made it connect to the top part of the head and use the screws already there to fasten it. It is for 30mm x 10mm fan. Ideally you don't need extra screws or bolts at all and this will last long even the nozzle and the heater work for long period at a 230C. Feel free to give me feed back. I may upgrade it after some more test. Print Settings Printer Brand: Ultimaker Printer: Ultimaker 2 Rafts: Doesn't Matter Supports: Yes Resolution: 0.1 Infill: 100 Notes: I used 0.4 shell thickness and a very slow speed (20mm/s). so the hangovers will keep in the right shape. I suggest use line or zigzag support if you use cura and try to make the support x/y distance 2mm or so so that there is no support structures in the enclosed space of this duct. I also suggest print it in the fan mount facing up position.