Re: [CAD_CAM_EDM_DRO] PC dust issues

>On Friday 02 January 2004 09:52, dex367 wrote:
>
>
>>I am in the finishing phases of the overhall of my 3 axis wood
>>router. I am now wondering how to keep the dust out of my PC and
>>monitor.
>>
>>I was thinking of using an enclosed plywood box with a plexiglass
>>front. It would have on each side furnace forced air filters with
>>muffin fans to move the air. I believe this would do the trick of
>>keeping the electronics clean, cool and within budget.
>>
>>

Having built one of these at work to keep some 8mm computer tape drives
clean, I can tell you it takes a lot of air to indirectly cool a small
heat load.
Of course, we have a pretty heavy-duty computer in the box we built, so it
dissipates more power than a standard PC. I tried to use a ring-style
auto air filter and a high-flow muffin fan, but the equipment overheated.
I finally switched it to a 1/20 Hp Dayton squirrel-cage blower, with a
squirrel cage about 4" diameter by 2" long, with a 2" outlet. This makes a
lot of noise, but it DOES move enough air to cool the computer. We get
about a 5 C temp rise over ambient air in the box. With the muffin fan,
we got 30+ C rise. Perhaps the auto air filter is too restrictive, and the
furnace filters will do better for you.

Jon