Heat sink materials, new type of wheels...

[Isky]

You know how most heat sinks are made out of aluminum? What if they were made out of the same material as what NASA uses for their rocket ships? The stuff never heats up even in like 2000 degrees F. Its always cool even if theres a huge flame on it...plus, the stuff doesn't melt. It would dissipate heat a whole lot more, but would be expensive. What is the material called anyway? Imagine a motor overgeared by like 3 teeth on the pinion and still barely get warm... :) hehe...it could happen, if only NASA would be interested.
People who have mountain bikes, or race competitively may know what I'm talking about. In one of my friends mountion biking magazines, there was a company with a new bicycle tire. The tire isnt what's special, its what it is made out of. They had a test with these tires. the results were staggering. One man was riding a bike, and turning at roughly a 40degree angle...he didnt even fall down. The tires rebound, or something like that so quickly, that they contour to EVERYTHING. imagine running a stadium truck, and never have any shocks! Its kinda weird...but they "spring back to their normal shape super quickly, so that if a touring car ran over a pebble, nothing would be affected. Kinda hard to say what it does, but ill pull my thoughts together, and Ill post again.

[bryceanator]

you want your heat sink to get hot so the heat conducts to it and removes it from the motor so it can dissapate into the if the heat sink didnt get hot it would be like insulate the motor and trap the heat in causing a flaming motor

[XXXER]

With things like these, it all comes down to cost....

And the tire thing, why fix something that is not broken, and who knows, we do not know if it will be faster unless someone tries it out.

[Railman]

Isky, Bryceums right! the purpose of a heat sink is to draw heat away from a component. The heat shields you are refering to are used to isolate components from heat, not to transfer it away. If you used a super insulator like the material you proposed in motors it would hold the heat in, just the opposite of what it needs. Interesting stuff that NASA plays with though. Thats where teflon technology came from.

[Throtl Hapie]

I think it may be called ceramic, or at least they use a type of it. Ceramic is extremely heat resistent.

[XXKlD]

i think that heat sink takes the heat away but also dissipates heat faster then a normal heat sink would. so it would be cooler and cool down the motor. but thats jus what i think.

[Isky]

Ah, I see what you guys are saying...I never thought of that. Are there any heat sinks that fit on the RC10T3? I hate it when my car gets all warm...slipper clutch, motor, chassis...ya know? It doesn't stay cool, and i already have a 19/87 gear ratio with gladiator 2's. Hmm...
-Isky

[B3 Bomb]

You want a cool motor? Racetech makes a "can cooler" made of camios that when soaked in water and then mounted to your motor keeps it cooler. I went in to my lhs and asked for a can cooler the person behid the counter looked at me funny and puled a soda can cooler out from under the register :)

[prime]

The next evolution might be the use of copper heat sinks instead of aluminum (copper conducts heat better) and maybe the use of peliters to pump heat away from motors and possible cool speed controls to near-zero tempratures. Cooler means more efficient.

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[Destrega]

I'm pretty sure those things that nasa uses is made out of platinum not sure though

[Isky]

woah, that thing is awesome!! When I grow up, I want to be a Mechanical Engineer. One of the things I want to do is exactly this, hehe...Anyway, what Destrega said might be the reason why platinum is so hard to find. Or maybe cause RC'ers use it!! Copper? I can imagine that!! But wouldnt it be flimsy?
-Isky

[Throtl Hapie]

I'm going to study mech. engineering starting next year in college, maybe I will build the ultimate RC car. :rolleyes:

[DJ BlendeR]

Radio Shack has 50 cent heatsinks available from their website. They are designed for your stereo, but I am sure that you could place them in strategic areas on your RC. I was planning on getting a few, some for my battery strap and then also the motor plate of my XXX-T, cuz those like to heat up.