Part cooling fan duct design discussion

[Jeff Ratner]

There are lots of youtube videos and stl downloads of different part cooling fan duct designs. Some blow from one side, some two, some three, some have rings that blow 360 degrees around the nozzle, some blow down on the part, some blow horizontally across, some diagonally down, etc. What design does your experience tell you works well?

[3D Printing Tips and Tricks]

Good question. It is possible to have too much cooling. It kinda makes sense though that the ideal is to have it surrounding the fusion spot, but in my experience on two side works optimally.

[Bryan Murphy]

On Wed, Dec 13, 2023 at 8:13 AM Jeff Ratner <jeff117...@gmail.com> wrote:

There are lots of youtube videos and stl downloads of different part cooling fan duct designs. Some blow from one side, some two, some three, some have rings that blow 360 degrees around the nozzle, some blow down on the part, some blow horizontally across, some diagonally down, etc. What design does your experience tell you works well? 

I can only speak from my experience, but I switched from the stock Creality Sprite Extruder cooling fan to the Taurus Duct V4 dual cooling setup and I had a noticeable bump in quality.  I've had much better overhangs and bridging quality since the upgrade.

The stock fan is weaker and only blows from the front, while the upgraded duct is stronger and blows from the two sides.  I appreciate the extra coverage as I don't seem to have any bad spots (i.e. the back of a print having worse quality because the front is blocking the fan). 

Bryan