Quieting the fan January 23, 2014 08:40AM |
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Re: Quieting the fan March 19, 2014 09:38AM |
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Re: Quieting the fan March 19, 2014 10:08AM |
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Re: Quieting the fan March 19, 2014 10:36AM |
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Re: Quieting the fan March 19, 2014 03:05PM |
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Re: Quieting the fan March 19, 2014 07:19PM |
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Re: Quieting the fan March 30, 2014 01:11PM |
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Re: Quieting the fan March 30, 2014 02:54PM |
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Re: Quieting the fan March 30, 2014 03:34PM |
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Re: Quieting the fan March 30, 2014 03:48PM |
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Re: Quieting the fan March 30, 2014 03:55PM |
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Re: Quieting the fan March 30, 2014 03:58PM |
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Re: Quieting the fan April 06, 2014 04:00PM |
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Re: Quieting the fan April 06, 2014 04:02PM |
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Re: Quieting the fan April 06, 2014 04:12PM |
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Re: Quieting the fan April 06, 2014 04:25PM |
Registered: 10 years ago Posts: 64 |
You don't think that a potentially weaker blower would be unable to do the job? I'm asking since I don't know how much air is actually needed..Quote
balidey
No need in my opinion. A sub £4 40x40x10mm fan is all thats needed.
Sure, if you want to model and print new fan mounts etc, go for it. But a quiet spec fan is such a simple change, nothing else is needed.
Re: Quieting the fan April 06, 2014 04:53PM |
Registered: 10 years ago Posts: 64 |
Re: Quieting the fan April 06, 2014 04:59PM |
Registered: 10 years ago Posts: 776 |
exactly that, there needs to be a sharp transition from cold to hot.Quote
michaelljunggren
Hmm, considering the design of the original duct, what is it supposed to cool anyway? The heatsink is screwed tightly to the horizontal block the bowden tube is attached to, so perhaps the end of the bowden tube is supposed to be cooled? Is there a risk the filament starts melting "upwards" otherwise?
Re: Quieting the fan April 06, 2014 05:03PM |
Registered: 10 years ago Posts: 64 |
Then, how important is the cooling of the extruded filament?Quote
Davek0974
exactly that, there needs to be a sharp transition from cold to hot.Quote
michaelljunggren
Hmm, considering the design of the original duct, what is it supposed to cool anyway? The heatsink is screwed tightly to the horizontal block the bowden tube is attached to, so perhaps the end of the bowden tube is supposed to be cooled? Is there a risk the filament starts melting "upwards" otherwise?
Re: Quieting the fan April 06, 2014 07:25PM |
Registered: 10 years ago Posts: 859 |
Re: Quieting the fan April 07, 2014 03:05AM |
Registered: 10 years ago Posts: 776 |
Quote
michaelljunggren
Then, how important is the cooling of the extruded filament?Quote
Davek0974
exactly that, there needs to be a sharp transition from cold to hot.Quote
michaelljunggren
Hmm, considering the design of the original duct, what is it supposed to cool anyway? The heatsink is screwed tightly to the horizontal block the bowden tube is attached to, so perhaps the end of the bowden tube is supposed to be cooled? Is there a risk the filament starts melting "upwards" otherwise?
Re: Quieting the fan April 07, 2014 08:22AM |
Registered: 10 years ago Posts: 64 |
Re: Quieting the fan April 07, 2014 08:33AM |
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Re: Quieting the fan April 07, 2014 08:52AM |
Registered: 10 years ago Posts: 64 |
I assume that there has to be some sort of focused airflow so the nozzle itself isn't cooled unnecessarily. If the flow were to be increased I also assume one has to be more careful not blowing air just about anywhere.Quote
dc42
2. Cooling the print, especially when printing bridges in PLA. This is where a less powerful fan might not work as well.
Re: Quieting the fan April 07, 2014 12:50PM |
Registered: 10 years ago Posts: 2,472 |
Quote
michaelljunggren
I assume that there has to be some sort of focused airflow so the nozzle itself isn't cooled unnecessarily. If the flow were to be increased I also assume one has to be more careful not blowing air just about anywhere.
BTW, there are 2 slits at the top and bottom of the heatsink. I can't figure out the purpose of those slits. Anyone? The original fan duct even make allowances for those slits but splitting the duct in 3, with these slits blowing downwards between the air flow. Do anyone know why this is so?
Re: Quieting the fan April 07, 2014 01:45PM |
Registered: 10 years ago Posts: 64 |
That's interesting! Just for fun, I'm going to measure everything with the original gear and do some experiments. Supposedly it should be fine but I'd also like to know how much margin there is.Quote
dmould
There are 3 slots to accommodate a planned upgrade to have 3 extruders and nozzles. With only 1 nozzle fitted you can therefore safely block off the two outer ducts if the airflow is insufficient with a quieter fan, which will increase the flow to the duct you need.
Re: Quieting the fan April 14, 2014 04:45AM |
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Re: Quieting the fan April 14, 2014 02:44PM |
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Re: Quieting the fan April 15, 2014 01:27PM |
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Re: Quieting the fan April 15, 2014 01:35PM |
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