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My Waterblock dual tec homemade...

post #1 of 19
Thread Starter 
Hi:D

I'm building a dual cell peltier waterblock for cooling the CPU, the base is made from a piece of copper 120x70x10mm inside the base 15 grove be milled fins long 50mm wide 3.5mm high 5.5mm...

The cad design of project:

82081652.jpg

How it works:

the speaker receives water from the lid and pushes it into "small" vertical slots of the speaker by increasing the flow velocity of the holes are milled on the top center of each flap of the base, the water falls from the top of vanes downstream toward the center chased out of the gorges is collected by the two large holes in the horizontal diffuser, in the cover 2 are derived collection tanks ..

Gif to show how you distribute the pressure inside the conduit of the lid, the fittings in the top red part shows the input pressure equal to 0.88bar entry, entering the main supply duct pressure drops to 0.5bar (shown in yellow) in the duct closer the pressure drops to 0.4bar (shown in green) ducts at the heart of the holes of the fittings remain a pressure of 0.5 bar (shown in yellow) ..

press.gif


The gif below shows how to propagate the heat inside the base of the waterblock...

temp.gif

proxxon%20modificata.jpg

to build the waterblock will use this 3-axis CNC milling machine, governed by the pc ....

'm Italian sorry for English...

wave2.gif
post #2 of 19
Interesting. Hope you post more of it soon. Can't wait to see a finished design and tests!
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post #3 of 19
Wow awesome. Hope to see results when its done! CNC kewl ;p.
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post #4 of 19
i love to see stuff like this. can't wait to see more.
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post #5 of 19
Thread Starter 
I hope that the project is to your liking biggrin.gif....

To enable the processing of metals and to increase the evacuation of chips I put the cooling system:cool:.....

vasca.jpgrame.jpg

now the mill is based on 2 L profiled aluminum bar ...
terminal adjusts the water flow:thumb: ...

percorso%20utensile.jpg

the CAD drawing file to my post is read by the cam
putting the diameter of the tool, the cam comparing the raw with the finished piece generating the tool path required to get the piece from the cam tool path generates a text file with the position of all points to reach for the piece, program is a text file read by the control program of the cutter in charge of piloting the drill ....
ritch tool generated by the sample follows a strategy chosen by me the strategy is: I chose to mill on top of each fin a series rectangles as wide as the distance between the 2 flaps down with the drill square is reduced to the final width throat after each rectangle milled the drill down to 0.15mm in Z of the rectangles upcoming ....
red is shown the base while the blue lines are the tool path of the cutter from the center of the tool...

primo%20rettangolo.jpg

copper block mounted on the chuck to limit stress on the Z axis during the milling column, I put the shims under the base without copper-based, taking the piece as low as possible even the head of the cutter works by limiting the low lever on the column of 'Z-axis during the milling,
I also shortened the 3mm drill so as to protrude as little as possible from the spindle, unless it protrudes less force on the bearings and structure of the mill ...

I milled the first set of rectangles in the dry basis, are down to 0.15mm in Z reached the proportions of the first rectangle cutter advances 0.5mm or next rectangle with 20,000 rpm spindle can not reach 100 mm/min vibrates a lot of progress around the edges of the cutter 8mm are too long and protruding from the spindle vibrates a lot ....
vibrations can create many problems...
however, if the quarry, the rectangle is milled measures design engines push this to 30% power forward only 90mm/min but at this speed gives the ultimate in power and torque perfect on hard metal ...
post #6 of 19
What mill and bit are you using and how do you plan to get concave surfaces with a flat bit that don't have tons of tiny little steps in them? Cool thread, are you worried about the weight?

-nomnom
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post #7 of 19
Thread Starter 
Quote:
Originally Posted by cook;13797298 
What mill and bit are you using and how do you plan to get concave surfaces with a flat bit that don't have tons of tiny little steps in them? Cool thread, are you worried about the weight?

-nomnom

I use a spherical mill to mill the grooves inside ....
for milling and smooth the top fin, the engines follow the toolpath generated by the cam, I let the computer to drive stepper motors in order to create an arch over the flap....
should weigh about 2.0kg 4.5Lb frown.gif
post #8 of 19
TECs are always welcome here.
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post #9 of 19
sub'd.. Cant wait to see more! TEC blocks like this have always intrigued me. Looks like your well versed in CAD and using a mil too thumb.gif
post #10 of 19
Thread Starter 
Milling the first flap:thumb:....
three hours used

primaletta.jpg

When the cutter touches the walls of the gorges vibrates a lot due to the copper tends to bind with the cutter in rotation ...
while in the first pass down the throat vibrates a little more than vibrate because copper alloy increasingly with the drill ...
profile to the tips of fins is not final
will finish the round the top and the bottom ...

quartaletta.jpg
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