Author Topic: TEC cooled Al chunk for greenie modules  (Read 6577 times)

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Offline James

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TEC cooled Al chunk for greenie modules
« on: July 15, 2010, 05:08:23 pm »
Check this out!

I just made these, waiting for my 150mW greenies!

James.  :)
« Last Edit: July 18, 2010, 02:21:42 am by James »
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Offline cfavreau

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Re: TEC cooled Al chunk for greenie modules
« Reply #1 on: July 17, 2010, 11:48:13 pm »
Well that certainly looks cool!  literally and figuratively!   How did you make those?   Tools, steps, etc?  I can't ever get anything I make with metal to turn out that nice.

Offline James

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Re: TEC cooled Al chunk for greenie modules
« Reply #2 on: July 18, 2010, 12:21:35 am »
I screwed up the first one, but not so bad I couldn't learn from it and recover.

I used a table saw!

And a thing called A Shop Smith Mark 5.

First I tried to drill through the two piece block that was already bolted together. That didn't go straight at all!

So I dropped the blade really low in my table saw and cut a groove in each half. I moved the fence and changed the blade height to cut out several passes. I removed about as much material as possible with saw cuts. Then I bolted the pieces back together and started drilling with bits that were just a tiny bit bigger than the channel I cut. I worked my way up to 12mm.

I also polished the surfaces that fit the TEC with wet sand paper on a piece of plate glass; 180, 320, 400, 600, 1000, 1500 grit.

James.  :)
« Last Edit: July 18, 2010, 02:24:05 am by James »
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Offline James

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Re: TEC cooled Al chunk for greenie modules
« Reply #3 on: July 18, 2010, 12:52:34 pm »
I got my 150mW greenie!

It's SICK bright!

And that's just one!

James.  :)
LaserBoy is Sofa King Cool!
But it will never be Alpha King Done!

Offline James

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Re: TEC cooled Al chunk for greenie modules
« Reply #4 on: July 20, 2010, 10:27:34 pm »
Better!

Electrically and thermally isolated.

It's just a bit too close to the ultimate edge of reality!  ???

I need some ice cream!  ;D

James.  :)
« Last Edit: July 21, 2010, 12:52:00 am by James »
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