Loading
Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Air cooling system for hot-end

by fma, published

Air cooling system for hot-end by fma Dec 13, 2012

Description

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.

Recent Comments

view all

As I changed all my carriage, I never really used that system (it broke quickly, because of too small parts).
But I'm working on the next release, for my new hardware. Hope to post something in a few days.
The pump is a membrane pump, and is really enough; I even have to pinch the tube to limit the flow! Having the air flow very close to the nozzle output requires very little air.

how well is it working and which kind of pump do you use? is a electric membrane pump for fish tanks sufficient?

More from 3D Printer Accessories

view more

Liked By

view all

License

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

Instructions

Print:
- 1x ring
- 3x tube clips
- 1x tube split

You need:
- 3x M2.5x12 screws + nuts
- 1x air pump (one of these little things for aquarium)
- 3x50mm brass tube (ext. D 4mm)
- flexible tube (ext. D 6mm, int. D 4mm)
- 3x 5mm leds (opt.)

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: 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.

Comments

You must be logged in to post a comment.

wthlee on Feb 17, 2014 said:

how well is it working and which kind of pump do you use? is a electric membrane pump for fish tanks sufficient?

fma on Feb 17, 2014 said:

As I changed all my carriage, I never really used that system (it broke quickly, because of too small parts).
But I'm working on the next release, for my new hardware. Hope to post something in a few days.
The pump is a membrane pump, and is really enough; I even have to pinch the tube to limit the flow! Having the air flow very close to the nozzle output requires very little air.

Top