The Smoked 400

J!m

J!m

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#206
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#206
For Joe: copper can be water jet cut and that is typically cheaper than laser.

We have a guy locally who is very inexpensive. I need to check with him on cutting carbon fiber woven sheet and ceramics, but I think he can.

You might want to check around- that may reduce the cost of copper; might also reduce the cost of the aluminum ones I presume you offer...
 
AngrySailor

AngrySailor

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#207
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Oct 15, 2014
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---not quite right
#207
J!m said:
For Joe: copper can be water jet cut and that is typically cheaper than laser.

We have a guy locally who is very inexpensive. I need to check with him on cutting carbon fiber woven sheet and ceramics, but I think he can.

You might want to check around- that may reduce the cost of copper; might also reduce the cost of the aluminum ones I presume you offer...
Click to expand...
I wonder what’s being laser cut? That’s typically charged by the inch. The outside dimensions could be sheared, holes drilled with a dedicated template then bent in a break...
 
laatsch55

laatsch55

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#208
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74,244
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Gillette, Wyo.
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Halfbiass...Electron Herder and Backass Woof
#208
AngrySailor said:
I wonder what’s being laser cut? That’s typically charged by the inch. The outside dimensions could be sheared, holes drilled with a dedicated template then bent in a break...
Click to expand...
Been there, done that, PITA. Also silver soldered a set together, also a PITA..
 
Gepetto

Gepetto

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#209
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Old 'Arn Enthusiast
#209
The primary cost is in the material and finishing, not the processing methods. CNC or Laser are about the same cost, laser more convenient for short runs. The secondary machining is the same whether copper or aluminum.

The delta is all copper cost and finish cost.

Copper without black finish is a useless exercise, as emissivity is terrible, unless you blast fan driven airflow by them. That is where copper excels. Once you turn copper black, you lose the sexiness that you wish to display copper for.

Summary: If you want copper heatsinks to display the sexiness of the copper without forced air, your heatsink efficiency just got worse.
 
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