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This is a new kind of cooling system for hot-ends, based on a little air pump.
The ring is designed for a ORD Bot Hadron, but can be adapted for other 3D printers.
I didn't make tests, as I'm waiting for my new hot-end (sold the previous one with my first 3D printer, a nice Prusa, replaced by a ORD Bot Hadron), but I tried by maintaining the tube from the air pump by hand, and it seems to work fine.
My pump says it can reach 100l/min when the tube is 45cm below the surface of the water. Don't know yet if it is enough for printing at high speed. I plan to design a custom centrifugal pump, like this cute one: http://www.thingiverse.com/thing:4839. Another way to go is to use a little compressor, but this will need a pressure regulator!
The ring has 3 holes for leds.
Air cooling system for hot-end by fma is licensed under the Creative Commons - Attribution license.
So what's this mean?
We're sure fma would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!