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Old 1st August 2003, 11:20 PM   #41
JayV is offline JayV  Sweden
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Im still calculating for some other solutions...

#1 casting some BIG heatsinks with lost foam casting (almost free

#2 build a diy cnc mill good for making the water blocks, the boards, and good looking frontplates, knobs/buttons and perhaps some EI cores and you could also mill out the foam for the casting.

#3 buy heatsinks.. but that is not real diy and a little to expensive! I rather build a mill for the money and also use it for other purposes than audio.
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Old 2nd August 2003, 01:50 AM   #42
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Or you could save a ton of money and I could mill the sinks for you at my cost.......
Mark
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Old 2nd August 2003, 04:00 AM   #43
moe29 is offline moe29  United States
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be careful Mark, you'll have 75 people wanting the same thing!

(water cooling is VERY tempting! I'd love to have a 3 channel
Aleph 2 that was water cooled for my HT)
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Old 3rd August 2003, 07:09 PM   #44
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With that quantity doing a CNC run of them would be very worthwhile. Perhaps this would make a good WIKI. Anyone intereasted let me know and I'll start one up. BTW: These could be made from either solid copper or alumnium.
Mark
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Old 3rd August 2003, 08:22 PM   #45
JayV is offline JayV  Sweden
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I think waterjet shoud be perfect for heatinks as the profile is 2d Very little material loss as you can nest the parts pretty tight! And it should be possible to get some frontplates in the same run. One cheaper solution is to cut them with foam and cast them locally with scrap aluminium... The material cost is almost nothing and shipping should be pretty low as the weight is low and the parts can be stacked!

A small waterblock in copper would be nice!!! Perhaps we could get a good price on the connectors too...

I'm looking for EI core laminates or O-cores do you know any good supplier?
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Old 14th August 2003, 01:49 AM   #46
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Actually cast copper would be the best way to go. There is a foundry a half block from my shop here in SLC that will do small runs. If you can send me a drawing I can get a price on having them made in both alumnium and in copper.
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Old 16th August 2003, 04:46 PM   #47
JayV is offline JayV  Sweden
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Lightbulb new idea

I just ordered 6 toroidal transformators (2*38V, 1500VA)

I have an idea for a board layout who shoud work fine for both watercooling and heatsinks, all components is on the same board except the FETs who have "long" wires soldered to the legs, so you can put them where you like. Will this work better than the layout with 3 boards? The wires have to handle less power and the lenght is about the same!

What format do you want the drawing? 2d/3d? metric?
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