My PLA prints are still mediocre on an unmodified Flashforge Creator Pro. Since I saw recommendations for an active cooling system 48 (go to time 2:38), I had a look around for designs. This is what I found to date:
On MMF from Flashforge 47 a front fan modification with a 1 part fan duct.
On Thingiverse, I found this model by Markwal 108 which keeps the fan on the side and probably cools filament coming out of the closer head more than the farther one. It’s a 2 part design.
This design looks great. I agree with you that rear mounting makes more sense. It’s a little squeezed to mount a bed fan in front of the 2 fans that cool the nozzles.
In your description it says, you might crash into the bed support. Did that ever happen to your knowledge with standard, unmodified gcode. That would be dangerous for our machine, since we have multiple users that won’t know about this additional requirement.
I initially thought that this was a suction design reusing the 2 main fans and pulling in air to the top (left schematic). Now, that would have been a cool design. But as seen on the right it actually needs 2 additional fans giving us a total of 4 on the FFCP which seems a bit cumbersome. Thanks for the suggestion, though.
A front fan duct for a rectangular not the round turbo fan. I presume your Flashforge didn’t come with the turbo, didn’t it? Seems like a waste not to use a duct design that utilizes the turbo fan if you have one installed already. The rear and font design will probably produces better airflow than the factory sideways duct.
I’ve a 2 years old FFCX and it did not come with any cooling fan system. So I googled and made up one from scratch following tutos and advices. This was a great improvement !!!
In your case, you could very certainly change the radial fan for an axial one and use the design I’ve pointed out.
Good luck in your quest
And let us know what you end up with. (Who knows I might buy a new FFCP in a near future)
Printed this backside fan and have been using it for a few prints now. Tricky to print because the thin air tunnel needs internal support that is difficult to remove. Very easy to mount. Loosen the bottom screws, slide it in, click in the fan, and finished. No additional screw needed. I have also not experienced any collisions.
Well done. My favorite design off all the ones that I found an listed here.