Print Cooling

Emmanuel

Print Cooling
January 25, 2013 09:07AM

Registered: 13 years ago
Posts: 615

There is only one thing that I miss on the Huxley and the Foldarap, an active cooling for small/tall prints.

My first option is to add some sort of bowden cooling [reprap.org]

The second will be a more classical 40mm fan attached to a part momentarily affixed to the x-carriage

Or maybe something like this idea of using the flow generated by the first fan that cool the hotend

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Emmanuel

Re: Print Cooling
January 25, 2013 09:09AM

Registered: 13 years ago
Posts: 615

www.flickr.com

Could work, very simple (silicone tube + motor pump + straw) but the pump I have is very weak...

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DeuxVis

Re: Print Cooling
January 25, 2013 11:00AM

Admin
Registered: 12 years ago
Posts: 2,569

You might be interested in the "tube cooling" system one of the LOGre* guy tried. Seems it works fine.

[www.thingiverse.com]

* Laboratoire Ouvert Grenoblois, the local hackerspace here.

Most of my technical comments should be correct, but is THIS one ?
Anyway, as a rule of thumb, always double check what people write.

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Emmanuel

Re: Print Cooling
January 28, 2013 10:00AM

Registered: 13 years ago
Posts: 615

Ah interesting, I didn't seen their system smiling smiley

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ju de tomate

Re: Print Cooling
January 28, 2013 11:56AM

Registered: 11 years ago
Posts: 48

Sorry for my lack of knowledge : why do you need a cooling system located on the extruder and a heater system on the bed ?

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Emmanuel

Re: Print Cooling
January 28, 2013 12:25PM

Registered: 13 years ago
Posts: 615

Pour les petites surface, par exemple la pointe d'une pyramide, le plastique n'aura pas le temps de refroidir et va remonter ou s'effondrer sur lui-même, pour compenser ça en général on ralentit la machine ou bien mieux on ajoute un ventilateur pour aider à refroidir le plastique sitôt sortie de la buse (pas indispensable dans la majorité des cas, mais permet d'imprimer plus vite certaines pièces)

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DeuxVis

Re: Print Cooling
January 30, 2013 08:24AM

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Registered: 12 years ago
Posts: 2,569

Sur certains types de pièces avec des surplombs (statues et figurines par exemple) c'est essentiel sinon le PLA "rebique" (se tord vers le haut) et les couches suivantes vont être mal posées, et le problème va aller en s'aggravant.

Par contre il faut bien localiser le jet d'air autour de la buse pour éviter de refroidir ailleurs (partie chaude de la buse, lit chauffant) et pour être bien efficace.

Most of my technical comments should be correct, but is THIS one ?
Anyway, as a rule of thumb, always double check what people write.

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Emmanuel

Re: Print Cooling
February 09, 2013 11:53AM

Registered: 13 years ago
Posts: 615

Okatake seems to have done something useful : [www.thingiverse.com] grinning smiley

(and just spotted one Foldarap in Japan)

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ju de tomate

Re: Print Cooling
February 09, 2013 01:25PM

Registered: 11 years ago
Posts: 48

It feet to basic X carriage or we have to print the version supply with the cooling system ?

Cooling will be automatically manage by the printing software (pronterface) or by the slicer software?

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Emmanuel

Re: Print Cooling
February 11, 2013 05:26AM

Registered: 13 years ago
Posts: 615

If the fan is plugged in the fan pins of the board, the cooling is managed by the Gcode generated with Slic3r, (in the filament tab you can set a time per layer as well as many parameters for the fan).

But indeed his fan support won't fit the actual x-carriage.
I plan to finish my version by using his channels design (never found the time to mesure things accurately), it will be around the heatsink for redirecting the air as passive cooling first, and if necessary as a version for an additional fan later.

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Emmanuel

Re: Print Cooling
February 19, 2013 04:19PM

Registered: 13 years ago
Posts: 615

A first try for a passive cooling solution smiling smiley

Foldarap_passive-cooling_01.jpg

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Emmanuel

Re: Print Cooling
February 22, 2013 08:47AM

Registered: 13 years ago
Posts: 615

Thing : [www.thingiverse.com]

A video to show the little airflow : [www.flickr.com]

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ju de tomate

Re: Print Cooling
March 01, 2013 03:12AM

Registered: 11 years ago
Posts: 48

Cette vidéo s'imprime bien ?

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ju de tomate

Re: Print Cooling
March 14, 2013 01:27AM

Registered: 11 years ago
Posts: 48

Ha j'avais pas vu que j'ai du bugué, je recommence : Est-ce que cette pièce s'imprime bien ? faut installer un ventilo pour la partie en tunnel ?

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Emmanuel

Re: Print Cooling
March 24, 2013 05:21AM

Registered: 13 years ago
Posts: 615

ah oui elle s'imprime bien même sans assistance au refroidissement, mais je pense que je vais tester la pièce du japonais qui ajoute un second ventilo pour pouvoir comparer

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ju de tomate

Re: Print Cooling
March 26, 2013 10:14AM

Registered: 11 years ago
Posts: 48

Ok, alors j'attends ton feed back pour savoir quelle pièce imprimer !

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Emmanuel

Re: Print Cooling
March 27, 2013 07:15PM

Registered: 13 years ago
Posts: 615

Bon bah sur la #000 la pièce du japonais touche le profilé comme le plateau est assez bas ^^'
et puis niveau souffle ça ressortait beaucoup par l'entrée, je trouvais.

En fait je pense que le mieux serait d'avoir un ventilo au même niveau que celui du moteur de l'extrudeur (sans doute en l'orientant vers le plateau à la place) et d'ajouter un peu d'isolation à la buse, encore que en l'utilisant avec parcimonie ça devrait pouvoir passer même sans.

about // liberapay // flickr // wiki // thingiverse - github

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ju de tomate

Re: Print Cooling
March 29, 2013 04:23AM

Registered: 11 years ago
Posts: 48

Tu peux donner le lien de la pièce du japonais ?

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Emmanuel

Re: Print Cooling
April 07, 2013 05:20AM

Registered: 13 years ago
Posts: 615

C'était [www.thingiverse.com]

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