Homemade heatsinks - diyAudio
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Old 7th February 2005, 11:45 PM   #1
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Default Homemade heatsinks

Anyone want a homemade heatsink? About 12 x 3 x 1" and four pounds of cast aluminum.

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I can cut that backplane off, need to do that anyway...

Tim
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Old 8th February 2005, 02:47 AM   #2
Stocker is offline Stocker  United States
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*bump*

Experimenting in the back yard?
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Old 8th February 2005, 03:26 AM   #3
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Yeppers. Made this for the induction heater project, since I need some thermal mass for the transistors carrying a kilowatt or three...

- I can also make one with vertical fins, which would be a bit more helpful since no one seems to like forced air cooling.

Tim
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Old 8th February 2005, 04:14 AM   #4
Stocker is offline Stocker  United States
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Forced air cooling keeps me cool during the summer in my house. Context!

Anyhow, is that as smooth as you can cast the surface? Personally I think it's to do your own metalcasting...

But my wife would take one look and say

and make me
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Old 8th February 2005, 04:57 AM   #5
Gaucho is offline Gaucho  Canada
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Thumbs up A true DIYer

It's very cool that you do your own casting! Did you DIY your own blast furnace too?
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Old 8th February 2005, 01:46 PM   #6
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Yep, it's all on my website under casting:
http://www.abymc.com/tmoranwms/Metal_Casting.html

The finned surface is *very* rough indeed, I'm going to try some finer sand. Those grooves are pretty tight and the coarse system sand I use isn't very good at it...

How 'bout $20 each?

Tim
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