Why the UMO has fans on electronics?

Discussion of the Ultimaker Original and Ultimaker Original + (kit and pre-assembled) printers
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LePaul
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Re: Why the UMO has fans on electronics?

Post by LePaul » December 13th, 2016, 10:24 am

Divorce is popular in this country for noise reduction :)

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drayson
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Re: Why the UMO has fans on electronics?

Post by drayson » December 13th, 2016, 11:57 am

:lol: :lol: :lol: :lol: Great.....

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Re: Why the UMO has fans on electronics?

Post by johan » December 29th, 2016, 3:43 pm

antiklesys wrote:I'd love to find a way to get rid of the noise (and the fan) once and for all.
Any recommendations?
There are two obvious alternatives, change the electronics board to some fan-less design or change the fan. Changing the fan seems to be the more economic alternative. I would try a Sunon blower fan and if there isn't one in exactly the right dimension a printed adapter should be fairly simple to design. (Might be worth it just to get rid of that awful origami fan duct.)

Getting a 2.1.x motherboard (UM2/UMO+) is an alternative, but that is pretty expensive and you probably need to upgrade to a pt100 temp sensor in that case.

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Titus
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Re: Why the UMO has fans on electronics?

Post by Titus » February 17th, 2017, 11:57 am

You can also peel of the sticker and drop in some sewing oil once in a while.
YES the fan still makes noise, just quite some less.

Ideally I'd use drop in stepper replacements that don't require cooling, but hey :P

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Re: Why the UMO has fans on electronics?

Post by LePaul » February 17th, 2017, 12:02 pm

I just had my UMO apart to replace the hot end and checked the electronics fan while wiring in the heater. It still has that initial rattle at start up but seems to quiet down after 30 seconds. I should think about replacing mine too

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Re: Why the UMO has fans on electronics?

Post by drayson » February 17th, 2017, 5:28 pm

I already tried several fans, shrouds and blowers but found nothing real suitable and silent. bought 24v as well as 12v, modding parts and standard mouser stuff - over all 4 blowers and 3 fans...
if somebody finds a good and silent replacement - best just a drop in part, keep me informed :-)

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