Heatsinks for DIY LED lamps

ttystikk

ttystikk

Well-Known Member
dom-one dela nooch said:
on the topic of heat-sinks has anyone done a lapping test with the veros as they have a copper base and i know you prob cant do it with a cree as ceramic but a led chip and heatsink that was lapped to the point that they both sick together with no paste and will give the best thermal conductivity behond what paste can do and lower temps and gain proformance ,,,,,,just a thought as as hard-core pc gaming overclockers have been doing it with there cpu processors for years with clear benefits of cooler running chips with longer life spans.
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Did you make all those lights in your avatar?
 
dom-one dela nooch

dom-one dela nooch

Active Member
ttystikk said:
Well I'm impressed!

I'm also working on the problem of heat transfer and chip cooling.
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thanks ttystikk...... i cant believe i made them myself and now they are done i am so proud of them.....all the months of reserching from you guys on the forum and watching a lot of vids from growmouse 5 and greengeans on youtube and the weeks of trying to get this stuff in the uk and talking to suppliers ....the saving up to buy the damm things.......omg the food and smoke i went without this month to make them was so not funny ,,,,beans on toast for weeks on end !.... i come from the pc gaming side of cooling chips and the best thermal paste for cooling you can get witch is a couple degrees cooler then the rest out there is......tuniq tx 4 but sand down the heat-sink from 300 grit then 400 ,800 ,1500, and 2000 for a mirror finish that my thinking tells me that a lot of the micro holes in the metal sanded out allowing for less paste and better heat dissapation into heatsink. https://www.youtube.com/watch?app=desktop&persist_app=1&v=1uB2wgAUotk
 
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Rayne

Rayne

Well-Known Member
dom-one dela nooch said:
on the topic of heatsinks has anyone done a lapping test with the veros as they have a copper base and i know you prob cant' do it with a cree as ceramic but a led chip and heatsink that was lapped to the point that they both sick together with no paste and will give the best thermal conductivity behind what paste can do and lower temps and gain performance.... just a thought as as hard-core pc gaming overclockers have been doing it with there cpu processors for years with clear benefits of cooler running chips with longer life spans.
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In regards to "Lapping test" with the Veros... The forum user known as RobinCNN, might have the information you want.
 
JorgeGonzales

JorgeGonzales

Well-Known Member
calvin kodi said:
Hey guys I have a quick question. If I want to use passive cooling for 8 vero18 on a 42" length 5.888" profile, is that sufficient?
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If you can, do the math yourself. Generally recommended figures are 120cm2 of surface area per heat watt dissipated. So how many watts is each Vero using, at what efficiency? What's left over is heat. Then figure out the surface area of your heatsink by calculating (number of fins*2*length)+(length*width*2). This gives you a quick way to compare extruded heatsinks. It ignores the base edges, but they don't add much surface area.

Also, look at the first post of this thread.
 
Chronikool

Chronikool

Well-Known Member
Greengenes707

Greengenes707

Well-Known Member
nogod_ said:
How thick is the baseplate?

Appreciate the graph. :clap:
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10mm base plate
70mm total height(60mm pins+10mm base)
140mm base diameter
Chronikool said:
Strong dude like you 'Genie....would have been able to carry those boxes in with one arm huh....? ;)
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Haha. Ya, I'm so yoked it's ridiculous. I piss on forklifts and pallet jacks..
akaki said:
@Greengenes707 what type of aluminum alloy is used for your heatsinks?
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AL1070. Pretty standard for forged sinks.
 
dom-one dela nooch

dom-one dela nooch

Active Member
Greengenes707 said:
140mm heatsinks drilled and tapped for 3590's and ideal system(holder and adapter) are in and up on PLC
View attachment 3689846 View attachment 3689849 View attachment 3689847 View attachment 3689842 View attachment 3689843 View attachment 3689853

120mm coming soon
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i can see why someone that wants maybe 3 or 4 of these heat-sinks as it might be worth it but they dont make sense if your using 10 cobs like me as it would be impratical and really exspencive !. would have to make something to hang them as well and i think a lot of people will end up using the old heatsinks as so much better looking and if you get a bigger heatsink like my 7 by 40 inch 20 fin heatsink that was 56 english pound or $80.90 and it will stay just as cool as these new things that would cost me $290 which is a no brainer in any stonners book !.
 
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