brushless 1/5 4wd conversion about to begin! couple questions. - Page 15 - RC-Monster Forums

Ryu James · 07.23.2009, 07:34 PM

Quote:

Originally Posted by BL_RV0

Hi Ryan, since you bought that box at radioshack, it includes a metal and plastic top, right? If you remove the water cooling bits, you can thermal epoxy the esc to the metal Case top, then epoxy a large heatsink to the other side of the top.

yes, that is right. it has both a plasic top and an aluminum top. however, after working on it today it appears the stock rampage rx box is gonna work better. it is slightly larger and will fit both my esc and rx comfortably and will be easier to mount. the RS box was just too tight of a fit. it would have looked real clean though. plus, with the rampage box i will be able to water proof it i think, even though the esc is already water resistant.

ha, i just said "box was too tight of a fit."

BL_RV0 · 07.23.2009, 10:13 PM

Oh, get your mind out of the gutter young man!

emaxxnitro · 07.23.2009, 10:16 PM

maybe you should ask pdelcast what he thinks... after all he designed it

Overdriven · 07.23.2009, 11:19 PM

If you're going to have a fan on the esc, have it blow into the alum pipes, simpliest and probably most effective. Careful wire routing would be required for this to be most effective. Removing the shrink will probably help a little too, and I wouldn't think it would void the warranty unless you solder on it. Besides, wouldn't running it in a land vehicle without the water cooling void it because it's not being run within it's design constraints?

On the more radical side I'm curious how effective a heat pipe system would be. It's what almost all pc cpu coolers are going to now. But that'll definitely void the warranty, and the aluminium pipe don't dissipate heat as well as the copper ones used in cpu coolers.

emaxxnitro · 07.23.2009, 11:47 PM

Quote:

Originally Posted by Overdriven

If you're going to have a fan on the esc, have it blow into the alum pipes, simpliest and probably most effective. Careful wire routing would be required for this to be most effective. Removing the shrink will probably help a little too, and I wouldn't think it would void the warranty unless you solder on it. Besides, wouldn't running it in a land vehicle without the water cooling void it because it's not being run within it's design constraints?

On the more radical side I'm curious how effective a heat pipe system would be. It's what almost all pc cpu coolers are going to now. But that'll definitely void the warranty, and the aluminium pipe don't dissipate heat as well as the copper ones used in cpu coolers.

heat pipes! thats it! 8 heat pipes on 1 heatsink. perfect

Ryu James · 07.24.2009, 05:52 AM

what are heat pipes? are you guys just referring to the 8 pipes on the esc?

what about this? i thought if i could find some kind of little pump i could mount a small nitro tank on the chassis with some coolant/water in it and use fuel line to pump through the esc pipes and back into the nitro tank. i just dont know where i would find a tiny pump like that. i am just gonnna stick with the fan but this would be kinda cool.

OZ-RUSTLER · 07.24.2009, 06:22 AM

Quote:

Originally Posted by Ryu James

i just dont know where i would find a tiny pump like that.

How about a washer bottle motor from a 1:1 car, pumping coolant?

florianz · 07.24.2009, 07:25 AM

cool stuff, each layer has it#s cooling.

one possibility would be to remove the pipes, grind the remaining surface flat, and put a heatsink on each side (w/ thermal glue). but this would probably void the guarantee. and is too much work.

or you could get yourself one of those water cooling systems for rc-car motors. yes, I'm not kidding!! I've seen them already a couple of times on the internet. It's mor or less the same like 1:1 cooling systems. and you have plenty of space on your car. water is actualle much better for cooling then air. here we go:http://www.rcuniverse.com/forum/m_5375253/tm.htm
get that and you have the most unique bl-converted truck on the planet!

an other strange but probably effective Idea:
you get massive aluminium (or copper)-sticks which fit tightly into the tubes, probably together with some thermal paste. the sticks would be longer than the tubes, like that you have more surface. maybe you make the ends of the aluminium sticks flat, so you can glue a cpu-heatsink on it. like that you have much more surface for cooling purposes. and it can be removed easely.

or you put a little fan on each side, right on the tubes. so the fans cool - instead a heatsink - the tubes. it would look a little bit like those mgm esc's.

florian

emaxxnitro · 07.24.2009, 09:43 AM

heat pipe
http://en.wikipedia.org/wiki/Heat_pipe
i have seen a pump small enough but i dont know were to get it

redshift · 07.24.2009, 10:02 AM

Ryu this thread is becoming a sticky- insane build and the disc brakes are too cool!

I think you are onto something with a tank/pump setup and my suggestion would be a windshield washer fluid pump. Any auto parts store will have multiple units to choose from, a small 3S lipo (like a 800- 1320mah) would provide the 12V. Only possible problem would be that these pumps are made for intermittent use. Check Edmund Scientific for some small project type pumps as you would only need very light flow to be effective.

We will need some video of this bruiser ASAP!

nitrostarter · 07.24.2009, 10:10 AM

Quote:

Originally Posted by Ryu James

what about this? i thought if i could find some kind of little pump i could mount a small nitro tank on the chassis with some coolant/water in it and use fuel line to pump through the esc pipes and back into the nitro tank. i just dont know where i would find a tiny pump like that. i am just gonnna stick with the fan but this would be kinda cool.

Ryu- This has been done before when a guy used a boat ESC in a vehicle. I'll try to find the thread on his build. He said it worked very well. He used a small pump that put out like 10psi and a small tank.

lincpimp · 07.24.2009, 10:25 AM

A larger nitro tank, some al tubing arranged in a zig zag pattern with possibly a fan to blow air over it, and a small pump would work well. As long as it is setup properly a water cooling setup would not be very heavy or very big, but finding a pump that can handle a beating may be a challenge. A car w/s washer pump would be a good choice, they are pretty sturdy, and you could mount it to the side of the nitro tank with some creativity. No sure what voltage to run it on, as they produce a fair amount of volume on 12v. Maybe 6v off a ccbec or something like that. If I get bored I may make something!

emaxxnitro · 10:43 AM

Quote:

Originally Posted by lincpimp

A larger nitro tank, some al tubing arranged in a zig zag pattern with possibly a fan to blow air over it, and a small pump would work well. As long as it is setup properly a water cooling setup would not be very heavy or very big, but finding a pump that can handle a beating may be a challenge. A car w/s washer pump would be a good choice, they are pretty sturdy, and you could mount it to the side of the nitro tank with some creativity. No sure what voltage to run it on, as they produce a fair amount of volume on 12v. Maybe 6v off a ccbec or something like that. If I get bored I may make something!

you can get a radiator.
and a pump http://www3.towerhobbies.com/cgi-bin...?&I=LXDJR7&P=7

nitrostarter · 07.24.2009, 10:49 AM

Quote:

Originally Posted by emaxxnitro

you can get a radiator.
and a pump http://www3.towerhobbies.com/cgi-bin...?&I=LXDJR7&P=7

I'm pretty sure thats the one the guy used... Good find!

redshift · 07.24.2009, 10:49 AM

Yeah emaxxnitro hit it right on the head!