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Feb 2016

I would suggest the one I made for myself, which is a remix of a remix of the rear cooling duct.

I consider it vastly superior to front fan designs as it takes a lot less space, it’s not as close to the extruders (no risk of melting), and the air flow is better.

Yeah, just moved here to the “homeland”. Designed and printed a set of coasters for my neighbors and they LOVED them. Easy to do with the FFCP. :wink:

Right on. I miss AA. I’ve got a lot of experience with my form1+ but am just diving into the Flashforge, which I bought last week. I’m hoping to one day understand purge walls as well as you to get such nice dual extrusion prints!

Hit me up sometime and I can talk you through how I do it. Pretty easy. I use Tinkercad and Makerware. Also, I gave up on Abs. Just use PLA for now and enjoy the nice prints. Hatch box makes nice stuff… Message me your number if you want to talk sometime and I’ll share all my secrets… Lol. Take care!

Hi RiXnCo,

Thanks a lot for your suggestion. This design you are using (left below) doesn’t work with the round turbofan (right below) that comes pre-installed on recent models of FFCP. Did you put a rectangular fan instead to fit into the duct design? I presume one could just disconnect the turbo fan and buy a round one instead. It’s easier at this point though to go for a different design that uses the round turbo fan.
20141112_003957_preview_featured.jpg

Ciao Vincenzo,

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.
rear fan duct.jpg

Hi KuL3D,

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.
front double underside.jpg front double.jpg

Hi lkauf,

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.
thruit00 front fan.jpg

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