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Old 01-14-2004, 11:04 AM   #91
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Teamphariswheel,
ygm,,

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Old 01-29-2004, 12:03 PM   #92
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"SuperCooler"...one more pic...coldest temp reading yet...minus 2.3 degrees F. Room temp 62 degrees...13.5vdc/6.5a...WOW!
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Old 01-29-2004, 12:40 PM   #93
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Do these just hook up to a 12 v power supply???
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Old 01-29-2004, 02:00 PM   #94
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Quote:
Originally posted by TeamPhariswheel
Here are the pics of The "SuperCooler" and The "SuperSuperCooler"--If there is enough interest in The "SuperSuperCooler" I may be able to make some of them available. Let me know PM
hey...how much do those cost again?
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Old 01-29-2004, 02:01 PM   #95
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just wondering if those are over kill for CPU cooling...-2.3F is kinda too cold!!
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Old 01-29-2004, 02:23 PM   #96
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They just hook to a 12 volt power supply that can supply the needed amperage.

Mine is a little different, designed for off the car use.

I think you should be careful how cold you go, as the magnets have a point where they can become brittle.

As for CPUs, they can really never be too cold, as they generate SOOO much heat. I have heard people running them at like -40 degrees and the speed was amazing, but the costs were through the roof.

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Old 01-30-2004, 09:50 AM   #97
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These units hook up to a 12vdc power supply (if you look at the pic- supercooler-2.3f, you will see my converted PC powersupply)-I have made a few of these powersupplies from old PC, just follow the directions in the other threds carefuly.

The "SuperCooler" draws about 6.5amps to run the Peltier chip and fan. I use a seperate PS to run my charger.
-2.3F may be to low for racing applications, I try to time my cooling to get motor/motor mount/heatsink at just under freezing(30degrees) right before a run, pull off
"SuperCooler", connect battery,put body on, and head to the starting line. So far, So good!

I have some friends that are computer gameing "geeks", and they have "VERY" elaborate cooling systems for CPU cooling(Peltier x 3, liquid cooling(Glycol), remote radiators). And -40F is not uncommon. They are into those wargame online games(Navy Seals) and spend hours and $$$ to be the best.
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Old 01-30-2004, 02:05 PM   #98
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do they really need 12V to operate? how about limiting the voltage so it wont get that cold?

how much do they usually cost? i was thinking of just having one to play around with. how do you hook that up to your CPU? wouldnt the frost melt if you turn off the computer and theres water everywhere?
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Old 01-30-2004, 02:11 PM   #99
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Quote:
Originally posted by disaster999
wouldnt the frost melt if you turn off the computer and theres water everywhere?
I was thinking same thing.
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Old 01-30-2004, 02:57 PM   #100
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. just answered my own question
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Old 01-30-2004, 03:00 PM   #101
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Quote:
Originally posted by AE Racer
. just answered my own question
there is water around the air....thats what they call humidity! water freezes at temp low as -2.3F
thats why they have frost!
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Old 01-30-2004, 05:50 PM   #102
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Water freezes at -32 deg. - 2.3 is pritty damn cold. And the room temp was 62 deg. Thats amazing.
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Old 01-30-2004, 06:24 PM   #103
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The Peltiers will operate as low as 5vdc, but the fan won't (unless you use a 5v fan). I find it much easier to regulate the time on the motor (or I use my digital thermometer or temp gun).

I just spoke to one of my neighbors (tech geek) and asked him "What about condensation and frost and moisture when you turn off your computer"? He looked at me bewilderd and said "Turn off my computer, Why would I do that" . His computer has been on for 4 months! He says that his CPU runs so hot and his cooling system is so efficient that he has it balanced so that his CPU runs at about 40 degrees all the time.

Anyway, for r/c use I dont worry about the moisture. I remember I used to break in old stock motors in in a glass of water to get the brushes to seat. As long as you keep moisture away from the ESC and receiver all should be OK.
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Old 01-30-2004, 11:02 PM   #104
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Water freezes at +32F (which is 0C) not at -32.

The heat generated by the extreme overclocked CPU's compensate for the cold generated by the peltier device. At 40 degrees and higher there will be no frost. Usually all of the air movement and due to extra fans and the large heat sinks on these system evaporate any condensation as well.

-2.3F is still very damn cold! I wonder what that does to the oil in the motor bearings . . .
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Old 01-31-2004, 05:20 AM   #105
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at the very least, it would open up any gaps between the shaft and bearings and any other partsl.

it would also make the springs stiffer

of course all of that would depend on how long the can was held at that temp and how much heat transfer there was through the endbell and arm.
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