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Flex Pipe Nozzle Cooler (K8200)

by mx5 Mar 28, 2014
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I'm considering using one of these for my cooling solution, Quick question... Do you find the pipes stay in place with all the movement well? I could see it drooping over time and getting in the way or pointing the cooling elsewhere.

The hotend on that printer does not move.

Well, I can safely say that nearly a year after my comment I have enough experience to see that as well.

Are you using the auto-cooling option in the firmware ? Do you have how many current you can drain for the fan output ?

Yes, using the auto cooling. Had to adjust the parameters because the printer runs on 15 Volts and the fan is made for 12 Volts. It looks like it can handle 15 Volts but it gets a little noisy above 12 Volts. So I set the auto adjust range to 35% - 80% and 100% for bridges only. I also upped the temperature a few degrees because the extruded filament is cooled way faster now.

I made one of this myself, because this one didn't fit that good on my fan.
But the air coming out of the flex hose is waaaaay less than without the hose.
I also bought a 12V, 125mA fan.
The hose itself works pretty fine, printed in pla.

Well yes, it seems there is no real standard for these radial fans. So most likely you have to change the dimensions to meet your fan and printer too. Consider this a proof of concept.

The PLA I got is far too brittle for snappy connections like this. I tried anyway with PLA but if it doesn't break right away then the connections loosen after a short while.

Not sure what the problem with the flow of air is. Make sure your pipe connections are air tight because this thing operates with pressurized air.

I too was going to do this. Now no need! Thx for sharing. Did you find that cooling from one point was sufficient? I was thinking of this design, but with a tip that split into to nozzles to cool from several directions...

I plan on experimenting with different pipe nozzles but for now it is
absolutely sufficient. At the moment I am focusing on finding the
optimal Slic3r filament cooling settings for this setup.

Very good! I was thinking of such cooling solution for months!!! Thanks for sharing.

You're welcome :-)

I also was planning to make this for quite some time now. Problem was the flex pipe connections required ABS plastic and I didn't want to start with ABS until I was 100% confident printing PLA.

Where are the parts for the flex pipe?

Read the instructions page please. I used the well designed Flexible Hose thing by Sal. No need to repost the files.