Our best effort still SUCKS - Sketchy Heatsinks 3

[Tcrumpen]

"Top Gear: Ambitious But Rubbish"

 

I believe that's what this video set out to prove as it's mentality

[Exotath]

Next up.... waterblock?

[JTrevail]

17 hours ago, Xerohumoris said:

Ask Alec Steele to forge you one. It can even look good from Damascus.

This would be some great content.

 

http://alecsteeleblacksmith.com/about/
https://www.youtube.com/channel/UCWizIdwZdmr43zfxlCktmNw

 

Aluminium is at least 2.5 time better as a heat conductor. I'm guessing you just want to see LTT struggle to cut steel?

[JTrevail]

19 hours ago, Streetguru said:

So next up is visiting a metal 3D printing factory and just printing out a heatsink?
 

 

Sintered and cast aluminium both have reduced thermal conductivity. Even if this new technique keeps parts dimensionally stable, they'll be brittle and do a poor job transfering heat.

[SolarNova]

9 hours ago, biohazard918 said:

 

They already did a bong cooler two years ago.

 

 

huh ,, how did i miss that. Go figure.

 

Thanks for pointing that out.

[AlexTheGreatish]

10 hours ago, Granular said:

The best heat sink is a huge chunk of metal

.......The best heatsink is an NH-D15, you need heatpipes.

[lewdicrous]

48 minutes ago, AlexTheGreatish said:

.......The best heatsink is an NH-D15, you need heatpipes.

Then just build a heatsink out of heatpipes, only.

[AlexTheGreatish]

3 minutes ago, lewdicrous said:

Then just build a heatsink out of heatpipes, only.

Heatpipes are really good at transferring heat from a hot spot to a cold spot, but really bad at actually dissipating heat, so that's why you need the aluminum sheets.

[lewdicrous]

1 minute ago, AlexTheGreatish said:

Heatpipes are really good at transferring heat from a hot spot to a cold spot, but really bad at actually dissipating heat, so that's why you need the aluminum sheets.

Stop letting physics break your dreams

[BarackOBatman]

Why not use the flat heat pipes? they're significantly cheaper?

https://www.digikey.com/en/product-highlight/a/advanced-thermal-solutions/round-and-flat-copper-heat-pipes?utm_adgroup=xGeneral&slid=&gclid=EAIaIQobChMIhvfI8qCp3AIVBIezCh2lTQX5EAAYASAAEgIwYfD_BwE

 

[AlexTheGreatish]

5 minutes ago, BarackOBatman said:

Why not use the flat heat pipes? they're significantly cheaper?

https://www.digikey.com/en/product-highlight/a/advanced-thermal-solutions/round-and-flat-copper-heat-pipes?utm_adgroup=xGeneral&slid=&gclid=EAIaIQobChMIhvfI8qCp3AIVBIezCh2lTQX5EAAYASAAEgIwYfD_BwE

 

Harder to bend

[August Beck]

On 7/17/2018 at 2:09 PM, AlexTheGreatish said:

 

 

Could you tell me where you got the heat pipes and the exact model?

[darknessblade]

On 7/17/2018 at 9:09 PM, AlexTheGreatish said:

Our last homemade heatsink was... terrible.  But can we get it right this time? 

 

 

 

you guys have a 3d printer but not thought of using a metalic filament to 3d print a heat-sink????

that is just hilarious 

https://www.matterhackers.com/store/3d-printer-filament/colorfabb-copperfill-metal-filament-1.75mm-075-kg

[AnonymousGuy]

Jesus this guy is an engineer? 

 

a) Buy some carbide burrs and stop using steel-working tools (angle grinder) on aluminum.  You need to treat aluminum like wood, not like steel.  Burrs would shape aluminum far faster than a hacksaw.

 

b) There's bits for centering a drill press on a hole.  Or just put a laser pointer in the chuck.

 

c) Why are you even bothering?  You spent more money and did a poorer job than going out and buying a heatsink.  I could have given you several far more interesting heatsink ideas to try.

[AlexTheGreatish]

46 minutes ago, August Beck said:

Could you tell me where you got the heat pipes and the exact model?

https://www.digikey.ca/product-detail/en/advanced-thermal-solutions-inc/ATS-HP-D6L300G30W-006/ATS2146-ND/5049689

10 minutes ago, AnonymousGuy said:

Jesus this guy is an engineer? 

 

a) Buy some carbide burrs and stop using steel-working tools (angle grinder) on aluminum.  You need to treat aluminum like wood, not like steel.  Burrs would shape aluminum far faster than a hacksaw.

 

b) There's bits for centering a drill press on a hole.  Or just put a laser pointer in the chuck.

 

c) Why are you even bothering?  You spent more money and did a poorer job than going out and buying a heatsink.  I could have given you several far more interesting heatsink ideas to try.

a) An aluminum cutting disc was used to take out chunks, burrs would have been good to do a final shape but would have taken a lot longer for the initial removal.

 

b) The holes were center punched so good enough

 

c) Views I guess? To show that heatsinks are not all that simple to make?

[Jtalk4456]

51 minutes ago, darknessblade said:

 

you guys have a 3d printer but not thought of using a metalic filament to 3d print a heat-sink????

that is just hilarious 

https://www.matterhackers.com/store/3d-printer-filament/colorfabb-copperfill-metal-filament-1.75mm-075-kg

@AlexTheGreatish Can we assume based on

Quote

We actually have some not so sketchy plans right now, they just take time to create.

That you might be planning a 3d printed build with really high quality? And if so and if it worked well, that you might sell it on the store with LTT logo/stamp on it?

[Razor Blade]

I wonder if LMG would be able to do a collaboration with AvE? He is a Canadian YouTuber who does all sort of tinkering and machining work... 

 

Maybe sketchy heatsinks part 4 could be the grand finale

[JTrevail]

1 hour ago, darknessblade said:

 

you guys have a 3d printer but not thought of using a metalic filament to 3d print a heat-sink????

that is just hilarious 

https://www.matterhackers.com/store/3d-printer-filament/colorfabb-copperfill-metal-filament-1.75mm-075-kg

That garbage you linked is only 1/3 copper by weight. You would have a heatsink that performed only marginally better that plastic

[AlexTheGreatish]

33 minutes ago, Jtalk4456 said:

@AlexTheGreatish Can we assume based on

That you might be planning a 3d printed build with really high quality? And if so and if it worked well, that you might sell it on the store with LTT logo/stamp on it?

It's mostly PLA, and 3D printing takes so long and is so expensive/finicky/terrible that I wouldn't want to make more than 5. 

25 minutes ago, Razor Blade said:

I wonder if LMG would be able to do a collaboration with AvE? He is a Canadian YouTuber who does all sort of tinkering and machining work... 

 

Maybe sketchy heatsinks part 4 could be the grand finale

Big fan of AvE so I'd be down

[sydh]

That was pretty amusing to watch. Much better than last time for sure.

[eisenklad]

@AlexTheGreatish

 

ever thought souping up Linus Bong Cooler design... by making it like a Frankenstein's Monster born out of Whole Room water cooling Reservoir and the Zalman V1 Reserators? 

 

it would basically kill anyone's budget but the comparison would probably be interesting.

 

but can you make your own Zalman V1 Reserator? basically adding Fins to Metal Pipes. 

 

or how about literally copying what Intel did at computex... how effective is an Aquarium chiller compared to Linus Phase Freezer coil cooling his water loop?

that said intel probably used a top of the line in-line water chiller.

but a decently sized unit does cost as much as an EK L360 Kit.

[Sakai 121]

Although this episode of sketching heatsink is more successful, the previous episode is so much professionally made in my opinion and much more enjoyable to watch, i honestly enjoy the narrative style ltt video more than recent ones.

[darknessblade]

11 hours ago, JTrevail said:

That garbage you linked is only 1/3 copper by weight. You would have a heatsink that performed only marginally better that plastic

if you say that this is garbage why did you not give a link to better copper/metalic filament???

but yes i do agree that the thermal conductivity of PLA is not that great:  

PLA: 0.075 BTU/h-ft-°F

BRICK: 0.15 BTU/h-ft-°F

Water (direct contact): 0.6 BTU/h-ft-°F

11 hours ago, AlexTheGreatish said:

It's mostly PLA, and 3D printing takes so long and is so expensive/finicky/terrible that I wouldn't want to make more than 5. 

Big fan of AvE so I'd be down

yes im aware that 3d printing takes long.

but if you make a design, turn the printer on during the night have it print the thing you want, then it does not take long, or is it just me. (and yes i do create my own things with a 3d printer)

 

like: my mini- TRI DIMENSIONAL CHESS board (star-trek) (and its no joke the banana is for scale)

 

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ps: how much infill did you use for that 3d printed heat-sink mold??

since you could also use the 3d printed item as a mold, so printing it with 0% infill, cut of the bottom, then fill the 3d print with aluminium,

like this: (image used chocolate, but the idea is the same)

 

based on the design you guys used i assume that with worst resolution it would take less than 2 hours to print. (since its a mold high resolution would mean that its harder for the aluminium to melt it)

[Nileshonesoul]

Hello , back some time ago i also has some thought on home made heatsinks so i also did made one model myself plz give thoughts on it 

Rough desing if like it tell i draw iso view as well

[Nileshonesoul]

On Wed Jul 18 2018 at 4:06 AM, IntrepidChuck said:

I just drew up a heatsink design I'd like to see LTT try out. It uses a copper wire mesh and aluminum bar to hold it together. The idea is the air would flow through the mesh. Not sure how well it would transfer heat. Perhaps you could remove one of the aluminum bar layers to add a heatpipe.

Cooper wire through  feel like will work great but they dont heat spread not conduct so for sending heat from one point to another need maximum area of contact on both side so thats why meash wire wont be as effective as normal thin plate