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Motor heatsink and fan combo

Motor heatsink and fan combo

Old 10-08-2003, 07:15 AM
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Default Motor heatsink and fan combo

I found one that looks awesome. Check it out.

http://www.jce-racing.com

The fan is tiny and still does 3+ cfm. It's made to wire into the BEC. Better than that taped down one I had.
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Old 10-08-2003, 07:35 AM
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Thanks for the source. I was trying to figure out how to mount one of those 25mm 5v fans on my XXX-S, and it looks like someone's beaten me to it.

Rob
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Old 10-08-2003, 08:13 AM
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that's pretty nice and not too expensive either.
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Old 10-08-2003, 09:04 AM
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That is actually pretty expensive. They are charging 12 bucks for a fan that you can get at radioshack for 3$.

how do you get power to the fan?
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Old 10-08-2003, 09:32 AM
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The Radio Shack fans are 12vdc, these are 5vdc so a little less draw and more rpm.

You just splice a servo plug onto the fan wires and plug it into the BEC slot on your receiver.
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Old 10-08-2003, 09:44 AM
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You can actually get that identical fan, in 12 or 5v from all kinds of places, for a fraction of the price. What do you do if you run a transponder? do you have to splice the pos and neg wires onto the transponder wire? Does that affect the transponder? You may get a cooler motor, but there will be a tiny voltage drop, slightly reducing punch/acceleration.
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Old 10-08-2003, 09:49 AM
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A motor thats 20deg cooler will run faster than a motor with .06mA more power.
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Old 10-08-2003, 10:15 AM
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There is also the added weight of the sink, fan, and the 4 screws.
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Old 10-08-2003, 01:10 PM
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the power loss isnt even noticed. I have run a fan on my tc3 for the last 3 weeks and it works awesome.
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Old 10-08-2003, 01:14 PM
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how about the weight?
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Old 10-08-2003, 02:34 PM
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the fan is 7 grams that i have
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Old 10-08-2003, 02:40 PM
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Hello,
Dou know the part # and supplier of the fan on your TC3 Trinityracinnut? I might want to try one out.

-Thanks
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Old 10-08-2003, 03:52 PM
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3CFM is a non existant amount though, doubt you would even feel that.
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Old 10-08-2003, 03:56 PM
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probably woundt take much to cool the fins of a heatsink.
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Old 10-08-2003, 03:59 PM
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Im working from what i know, your average computer cpu fan provides between 30 and 40cfm, ontop of a heatsink which is about 3-4 times the size of the pictured one im estimating. This keeps the cpu between 40 and 60C. Most electric motors come off hotter than that, and i doubt the fan will make any difference, the air rushing under the chassis will do a lot more than that i think.
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