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[mod] Down blower

laurent_P

[mod] Down blower
April 25, 2014 08:36AM

Registered: 10 years ago
Posts: 26

I had some problem with an uneven cooling (retaction situated away from fan)
So I thougth, I will make something like this :
[plus.google.com]

To get the air flow right at the nozzle.
Is anyone ever try something like this?
Do you have .STL ?

Or else I tought about a bowden fan , hidden in the base.

Just to share the ideas !

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Traumflug

Re: [mod] Down blower
April 26, 2014 06:27AM

Registered: 13 years ago
Posts: 7,616

Quote
laurent_P
To get the air flow right at the nozzle.

It makes sense to cool the hotend above the heating element and it makes sense to cool the area around the nozzle, but cooling the heating element it's self is, pardon, nonsense. If you get better prints with this it's because of airflow leaking to the areas mentioned.

Generation 7 Electronics	Teacup Firmware	RepRap DIY

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laurent_P

Re: [mod] Down blower
April 26, 2014 06:39PM

Registered: 10 years ago
Posts: 26

sorry I didn't meant to say to blow on the hotend but just rigth on top of the part which is printing
because the default setup with the fan installed at the back of the hotend, seems too far from the actual objet that is printed, and it doesn't really cool it.

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mattsi

Re: [mod] Down blower
April 27, 2014 04:42PM

Registered: 9 years ago
Posts: 49

Hi laurent_P,

There's an other one that seams good : [www.thingiverse.com]

I'll test it one as soon has I have my foldarap working

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laurent_P

Re: [mod] Down blower
April 28, 2014 05:05AM

Registered: 10 years ago
Posts: 26

hhaaa coool that's what I was searching ! nice
I'll try it soon too

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laurent_P

Re: [mod] Down blower
April 28, 2014 05:10AM

Registered: 10 years ago
Posts: 26

this one is cool too
[www.thingiverse.com]

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mattsi

Re: [mod] Down blower
April 28, 2014 12:13PM

Registered: 9 years ago
Posts: 49

Pleased to have helped winking smiley

And you helped me by asking your question : I planned to modify the design of another one, but you gave me the idea to look for an adapted one smileys with beer

The one you found doesn't need a fan !

Edited 1 time(s). Last edit at 04/28/2014 12:15PM by mattsi.

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laurent_P

Re: [mod] Down blower
May 02, 2014 05:05AM

Registered: 10 years ago
Posts: 26

Yeah the last one doesn't need a fan but maybe the air that is flowing trought the heatsink is a little bit hot to cool the filament properly ?

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mattsi

Re: [mod] Down blower
May 02, 2014 05:24AM

Registered: 9 years ago
Posts: 49

I don't know.

Maybe the best way is to test it

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mattsi

Re: [mod] Down blower
May 03, 2014 03:23PM

Registered: 9 years ago
Posts: 49

Hi laurent P,

I was looking for answer about my peltier when I found this post which contains answers to your cooling question :
[forums.reprap.org]

Regards