6100btu A/C water chiller with controller

[super dank]

Start with 50lbs of peeled A/C unit...



Some lexan...



I made a nice Jig for sanding and assembling...



I still need to decide what to use to seal the copper lines water-tight. I might use either auto fiberglass or super glue (acrylate) gel. Silicon would seal the best, but I'm worried it might come unstuck.



There should be more coming including the electronics and likely an enclosure. It may take a little while, but it should freakin OWN some processor temps

Cheap too

[Mean Machine]

Lookin' good. Keep us posted.
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Man, or woman, or both?
Grandis spiritus, sanctus diavolos

[Delph1]

Yikes, that's even cooler than I thought.

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[magicman]

Now this looks interesting. I've got an old one out in the garage...

Keep us updated. I'd be interested to see if it's 24hr stable ( or at least 8 ) and how much power it draws...

Not to mention what you're going to do with your hoses, and the condensation that will form on the line from the chiller to the cpu...
_________________
E6600 @ 3800Mhz | EVGA 680i | 2GB DDR2 PC8500 @ 550Mhz | 7800GT |Silverstone Zeus 750W| DD TDX 120mm waterloop

[super dank]

After testing some of the available bonding agents, the fiberglass had an obvious advantage, but it sets very fast and is then difficult to work with.

It leaked of course, but after some inspection with a flashlight the acrylic joints look great. Somehow there was a small pinhole through the fiberglass "plug" somewhere.



Problem? Leak

Solution? More fiberglass...



It is now holding water and will hopefully stay that way.



There should be several safety features when the controller is ready



Accurate to 1/4 ºC

[Doctor_Death]

If i am seeing right,that says 21.5C I get lower that that With the Elite on a QX9650.My other QX9650 is cooled by the 12TEC Boreas chiller,and at 4GHz was at 30c. Once i changed the stock fans it dropped to 26c. Now the QX9650 that the Elite is cooling is running stock speed with temps @ 18c-20c-22c-18c. I hope you get some sub zero temps when your finished,!

[Delph1]

Looking good so far

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[Mean Machine]

That can't be healthy for your sex life.
_________________
Man, or woman, or both?
Grandis spiritus, sanctus diavolos

[super dank]

[Mean Machine]

Oh, forgot, you had one of those females. My bad.
_________________
Man, or woman, or both?
Grandis spiritus, sanctus diavolos

[super dank]

Its actually kind-of funny how things begin to get easy when you only need to re-work code you've already finished. It took less than an hour to tie together my LCD code with the temp sensor measurement.

[super dank]

I tried to waterproof a temp sensor with some fiberglass, and it seemed to have a capacitative effect when the fiberglass had antifreeze on it, and the analog reading would jump up and down about ten degrees.

I tried another one made with a coupling and an epoxy made for marine use, and it works great. I need to make one more of these and then work on the firmware.



After leaving it for a couple of days the acrylic leaked in one tiny pinhole, so I have fixed that with the acrylic agent. I think I may coat the seams on the inside with fiberglass to prevent any more.



In the picture is only where I splashed some on accident. It was a very slow leak that I almost did not notice.

[Delph1]

Sweeeet

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[super dank]

It may be a bit overkill, but this marine epoxy stuff is incredible



It takes a long time to dry, but I think there may be a 99.8% chance there will be no more leaks......

[Delph1]

Looking forward to some results

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[super dank]

It's an old trick of course, but a good one

Things will probably start to come together (or apart) soon...

[super dank]

It's not finished yet, but it works (duh ), and no more leaks so far it can bring the reservoir temp down with the load from a sink-full of hot water. It seems that the large res also help keep a large buffer so the compressor can stay off for a while. I still need to work on a couple of things like fan control (and maybe a better fan), and a temp sensor to prevent the condenser from overheating, but once I feel its safe enough to be left with my computer I will post the rest of the build

[Delph1]

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[super dank]

I love it when things fall into place



I used the relay from the A/C parts for the compressor, of course. I then used a 13A 120V dc relay I had for the fan.



The unit is much easier to move when it is empty. It occurred to me that I can simply put the radiators I have right in the line, and the unit can be optionally dormant

[Mean Machine]

Woah, cool. But it looks like your radiator would benefit from some compressed air treatment.
_________________
Man, or woman, or both?
Grandis spiritus, sanctus diavolos

[super dank]

It's not over quite yet I simply need to solder the circuit onto a real PCB. Those breadboards are too unreliable and if you wiggle the wires, you can cause breaks in the circuit and bad readings, catastrophe, etc. It will come along...

[magicman]

Looking good, keep us up to date.
_________________
E6600 @ 3800Mhz | EVGA 680i | 2GB DDR2 PC8500 @ 550Mhz | 7800GT |Silverstone Zeus 750W| DD TDX 120mm waterloop

[super dank]

The controller is done, and it's "efficient" no unnecessary drain

[Mean Machine]

Cool. Can't think of many other words to describe this.
_________________
Man, or woman, or both?
Grandis spiritus, sanctus diavolos

[Delph1]