Heatsink Design like NIRO and wanted for ZEN/Firstwatt SE projects - where to order? - diyAudio
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Old 6th January 2010, 08:57 AM   #1
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Default Heatsink Design like NIRO and wanted for ZEN/Firstwatt SE projects - where to order?

I have found a very special heatsink design. Also interested for diy projects, e. g. ZEN "Delight" and some other ZEN/Aleph variations. Where are made this heatsinks?

I don't find it by the follow companies:
Heat sink producer Aavid Thermalloy - World Leader in Thermal Management
Conrad Heatsinks
f.cool
Taisol CMK702151A Copper Heatpipe Heatsink Review - FrostyTech.com

Here some photos of the heatsinks, that I mean:
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Old 6th January 2010, 08:59 AM   #2
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second try for the heatsink photos:
Attached Images
File Type: jpg NIRO 1000.jpg (52.4 KB, 477 views)
File Type: jpg niro_1000_rear.jpg (29.6 KB, 458 views)
File Type: jpg niro_showstopper.jpg (24.6 KB, 458 views)
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Old 6th January 2010, 02:56 PM   #3
mtj is offline mtj  United States
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That is a custom heatsink designed by the audio company and manufactured by an extrusion company. My guess would be that the extrusion die itself probably cost $5,000.00 US and then you would pay so much per weight of the extrusion.

MJ
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Old 6th January 2010, 03:24 PM   #4
Magura is offline Magura  Denmark
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Oh, that looks real familiar


Magura
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File Type: jpg PICT0780scl.JPG (96.3 KB, 428 views)
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Old 6th January 2010, 03:35 PM   #5
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Looks like cylinder heads from an air cooled engine!

mmmmmm

Fran
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Old 7th January 2010, 07:00 PM   #6
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woodturner fran, thanks for the idea! now I have another source of unique heatsinks. There's never a shortage of blown engines from lawnmowers, etc.

Peace,

Dave
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Old 7th January 2010, 07:12 PM   #7
Magura is offline Magura  Denmark
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Hey Dave,

Now all that's left for you, to get a real nice multiple heatsinks chassis, is to figure which lawnmower is particular lousy quality, so you can get all your heatsinks in the same design


Magura
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Old 7th January 2010, 07:20 PM   #8
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Quote:
Originally Posted by Magura View Post
Hey Dave,

Now all that's left for you, to get a real nice multiple heatsinks chassis, is to figure which lawnmower is particular lousy quality, so you can get all your heatsinks in the same design


Magura
Hey Magura, that isn't a problem around here. It isn't that they are of poor quality, it's just that it's cheaper to replace than repair around here. Therefore I find a lot of old Briggs and Stratton and Tecumseh's that are discarded. So finding multiples of the same design shouldn't be a problem. I have a friend with at least six lawnmowers laying around his place, some I gave to him. I imagine I could acquire a couple engines without any problems. Perhaps I gut the engine and put the circuit inside the cylinder bore. Use the entire engine housing as the heatsink!

Peace,

Dave
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Old 7th January 2010, 07:25 PM   #9
Magura is offline Magura  Denmark
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Dave, a word of advice.
As you can see from the above pics, I've been playing around with round designs. Trust me, you don't wanna go there, unless you have a machine shop or the like at your disposal.


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Old 7th January 2010, 07:32 PM   #10
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Quote:
Originally Posted by mtj View Post
My guess would be that the extrusion die itself probably cost $5,000.00 US and then you would pay so much per weight of the extrusion.
That's about right.

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