Polished Heatsink

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-XCRL-
Joined: 06/23/2005
User offline. Last seen 3 years 37 weeks ago.

'Dunno if it helps, but its pretty! I first sanded the whole thing down with 2400 grit(I think that's what it was) sand paper. Then I used my dremmel, with a buffing head, and some rubbing compound. Took about 10 minutes total. Result: (Clik the thumbnail for a big pic)

I know some people have probably done this, but I haven't seen anyone lately here doing it, so enjoy! Oh, and the pic, it says "Polished", then I just drew some squigly lines over it...incase you're wondering.

Also, in theory, it should help with heat dissipation, because smoother surfaces dissipate heat more...so, well, we'll see!

nascarfan20
Joined: 10/26/2006
User offline. Last seen 2 years 24 weeks ago.
Re: Polished Heatsink

Dorito wrote:
Whoah man, Yeah I drilled holes into my motor mount, and polished it when I put it in a while back, and put some comm drops on my motor, my Xmod 'stang since has died of a fried circuit board, oh and a bad servo, I got a F-150 now..

2 year bump... ALLRIGHT :P !

In the future try not to bump old topics, just look at the date at the top of the last post :wink: .

Dorito
Joined: 04/26/2007
User offline. Last seen 4 years 26 weeks ago.
Re: Polished Heatsink

Whoah man, Yeah I drilled holes into my motor mount, and polished it when I put it in a while back, and put some comm drops on my motor, my Xmod 'stang since has died of a fried circuit board, oh and a bad servo, I got a F-150 now..

texan_idiot25
Joined: 02/16/2006
User offline. Last seen 1 year 5 weeks ago.
Re: Polished Heatsink

BlackSunshine wrote:
hey man i did that too :) and i took everything outa my motor cas and drilled holes nt he heatsink in to the motor case for cooling and put comm drops in and man does it run now! and it looks pretty and weighs less cause of all the hole i put in it :D

u got pics of this, or are u talkin lies?

__________________

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White_Hamster
Joined: 01/05/2006
User offline. Last seen 1 year 39 weeks ago.
Re: Polished Heatsink

what did you do? please try to spell everything out, if it does work, we might wanna try it

BlackSunshine
Joined: 06/19/2006
User offline. Last seen 4 years 38 weeks ago.
Re: Polished Heatsink

hey man i did that too :) and i took everything outa my motor cas and drilled holes nt he heatsink in to the motor case for cooling and put comm drops in and man does it run now! and it looks pretty and weighs less cause of all the hole i put in it :D

-XCRL-
Joined: 06/23/2005
User offline. Last seen 3 years 37 weeks ago.
Re: Polished Heatsink

ashrimp wrote:
woah, 0 minutes total! you are very fast! :lol:

Hey hey! Dnt pck on me bcause I mised one caracter! lol. Fixed. :lol:

nivlacs3z
Joined: 02/05/2006
User offline. Last seen 4 years 47 weeks ago.
Re: Polished Heatsink

Redline is right. When I was really into computers and overclocking, I knew that heat was going to be one of the biggest fights. So Lapping the heatsink makes a big diff on a 145watt CPU. My results showed that the cpu cooled about 5ºC cooler then an unlapped heatsink. Thing is however, The motor doesn't make complete contact, so what you should do if you wanted all the contact is figure out how to make things fit more flush. With computers we used Artic Silver 5 aka just another thermal compound(the best though). That stuff fills the tiny gaps from the CPU to the heatsink. CPU's cores arent completly flat so yeah. Probably way to much work for a motor though. (holes might be more efficient) Anyways as for the looks, its HOT heh. Im not sure how long that finish is going to last though. The aluminum on some heatsinks that I've done quickly tarnish, but maybe you'll have better luck. ^_____^ hot stuff

Redline06
Joined: 05/07/2006
User offline. Last seen 5 years 25 weeks ago.
Re: Polished Heatsink

Aw man that looks awesome! I gotta try that on my heatsink.

On the topic of heat dissipation, many computer moders lapp their CPU heatsinks, lapping is basicaly the same thing you did, it polishes the surface and makes it as flat as possible, which allows for better heat dissipation. Now i know this does not aply to this heatsink because the polished part does not directly touch the heat source bought some of these principles may apply.

Redline

ashrimp
Joined: 12/09/2005
User offline. Last seen 2 years 41 weeks ago.
Re: Polished Heatsink

woah, 0 minutes total! you are very fast! :lol:

UberRicer
Joined: 06/09/2006
User offline. Last seen 5 years 25 weeks ago.
Re: Polished Heatsink

Yes, it's a good idea in both form and function.
You might want to add metallic extensions to it like this:

-------------------
| |
-------------------

Except with the distance in between being about a few millimeters. Most of the heat would just radiate upwards through the layers.

-XCRL-
Joined: 06/23/2005
User offline. Last seen 3 years 37 weeks ago.
Re: Polished Heatsink

Well I didnt do it for the heat dissipation, I did it because its sexier than a flat steel finish! :lol:

color0
Joined: 05/25/2004
User offline. Last seen 2 years 32 weeks ago.
Re: Polished Heatsink

physics textbook says more surface area = more heat dissipation; fine texturing on the sink would behave like microscopic fins, and we all know what fins on a heatsink are for. :)

if you really want it to radiate more heat, anodize/powdercoat it black.

-XCRL-
Joined: 06/23/2005
User offline. Last seen 3 years 37 weeks ago.
Re: Polished Heatsink

I'll look for it somehwere else, but a while ago, I saw a discussion about different heatsinks, making your own, and why its not a good idea. One of the reason was because of the inability to make super smooth surfaces.

MaxximumAttack
Joined: 02/27/2004
User offline. Last seen 4 years 34 weeks ago.
Re: Polished Heatsink

Mybe you should state where you got that info from ;)