Little cooling help for MM Muggy?

[lincpimp]

Originally Posted by Takedown

I would run a ducted fan over it like my friend does. It cost the same as a regular fan yet puts out a alot more wind and is very efficient. Here- http://www3.towerhobbies.com/cgi-bin...?&I=LXHHP1&P=7

Hmm, just use a larger ducted fan unit, place the esc in front of it, and use it for thrust. I would think that a 1515 powered ducted fan unit would be reasonably powerful, and the intake would flow plenty of air over the esc...

[Takedown]

Originally Posted by lincpimp

Hmm, just use a larger ducted fan unit, place the esc in front of it, and use it for thrust. I would think that a 1515 powered ducted fan unit would be reasonably powerful, and the intake would flow plenty of air over the esc...

Hmmm... I would just go for the small ducted fan because its cheap and you dont have to mod anything. "Much Easier"

[lydiasdad]

I never understood why so people are against using fans. Even if you are geared correctly, the cooler the esc the better.

what mods are done on your esc.

the cap should help some , and also put some holes in the case

[JERRY2KONE]

IMO I would go for what is easy and takes the least amount of work, but gives you the best results. Try adding the cap to the power leads and instal a cheap fan. With those two items you should have a much better setup without compromising speed.

[BrianG]

Originally Posted by lydiasdad

I never understood why so people are against using fans. Even if you are geared correctly, the cooler the esc the better.

I don't know about other people's reasons, but I don't like them because A) adds wiring complexity (albeit small), B) Just something else to go wrong, and C) if you are relying on a fan for reliable operation, then if it breaks/goes bad, you generally don't know it until you thermal.

IMO, fans are for an improperly designed system. With adequate airflow and/or a little extra heatsinking, any ESC should run right. If not, either gearing is too high, battery voltage or ESC current rating is too low for the power you want, or any combination of these.

And this is from someone who doesn't like temps any higher than 30-40*F above ambient temperature.

[lydiasdad]

Originally Posted by BrianG

I don't know about other people's reasons, but I don't like them because A) adds wiring complexity (albeit small), B) Just something else to go wrong, and C) if you are relying on a fan for reliable operation, then if it breaks/goes bad, you generally don't know it until you thermal.

IMO, fans are for an improperly designed system. With adequate airflow and/or a little extra heatsinking, any ESC should run right. If not, either gearing is too high, battery voltage or ESC current rating is too low for the power you want, or any combination of these.

And this is from someone who doesn't like temps any higher than 30-40*F above ambient temperature.

A) I think the extra wiring is negligible. B) True. C) I agree a fan should not be used to compensate for bad gearing. However, adding a fan to lower the operating temp is always good. Even if the esc is only 30* above ambient a fan might lower it 10-15*. Lower temps means longer component life and more efficiency.