The file '80mm Axial To Centrifugal Fan 3D Printer Model' is (step,stl) file type, size is 1.1MB.
The blower fan that came with my Anet A8 never worked. I have a bunch of 80mm fans lying around so I designed this to use the guts of an 80mm fan. You will undoubtedly need to modify how your fan connects to the body. Be sure to balance your fan on its axle, otherwise your fan will be loud and inefficient. I have included a step file which will hopefully allow you to modify the design.
*I'm not sure how much the stock fan cooled, but the first time I used this I had my extruder set at 200 C and the fan set to come on after the first layer at 100% speed. When it did come on, it cooled the extruder down to 185 C and the extruder didn't have enough power to get it back to 200 C. I ended up setting the speed to 50% power. That made the extruder temperature drop by about 10 degrees, but the extruder was able to recoup.
80mm_Axial_to_Centrifigul_v6.step | 481.0KB | |
body.stl | 139.7KB | |
cover.stl | 357.5KB | |
fan.stl | 657.2KB | |
Nozzle.stl | 1.8MB | |
standoff.stl | 126.4KB |