This is my Copper Water Chamber (that is almost finished. Sorry for the basic diagram:-
It was a solid block that I removed the center section from and will fix a top a bottom copper cover plate, one of which will be the hot plate, that when in use will have water or coolant flowing across the opposite side to the peltiers. In theory this should remove the heat created very efficiently, I hope
Copper conducts heat almost twice as well as aluminum. I found a chart online somewhere-I think I was searching for "thermal characteristics metals" or something like that. Interestingly, brass is piss-poor despite being mostly copper.
I know you didn't ask me but I've a bit of experience as far as Copper goes, (and I drilled the Centre section out of the water chamber) it is much harder to drill because it is so soft.
You need to get the drill speed slow, have a sharp drill bit and use a lubricant like 3 in one to stop the copper overheating and melting. If this happens the drill bit can stick and snap leaving you in a whole world of ****.
I also had to put that block of Copper in cold water every so often as it would suck so much heat off of the drill bit I couldn't touch it!!
Aluminium is much easier, but a pillar drill is a good plan for straight holes
[This message has been edited by BladeRunner (edited 05-26-2000).]
seriously I use a drill press. and bladerunner! was that copper clamped to the drill press or something? cause the metal should not have gotten that hot when u drilled it out. I drill the AL and it never gets warm. I mean I can touch it and it won't burn me fingers!
u should use a 2 fluted milling bit, they are sharp as a razor.
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Yes I was using a pillardrill, but don't forget how big that piece of copper is and I was drilling one hole after the other with a 4mm drill, so it was heat build up after 10 of so holes. It just underlines how good Copper is at removing the heat from the drill bit. There is also different quality grades of Copper and this stuff is just about the best you can get .
[This message has been edited by BladeRunner (edited 05-27-2000).]