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Water Block Design / Construction Building your own block? Need info on designing one? Heres where to do it

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Unread 12-07-2005, 08:42 PM   #1
GreenMachine
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Join Date: Oct 2005
Location: St. Johns NL
Posts: 1
#rotor block details

I am interested in making a # rotor style block, but there are a few specifics I wanted to know before I got started. The #rotor website does not have the "block of the masses section" which I assume talks about disigning your own. I have access to a bunch of aluminum flatbar scraps it is only 11mm thick if I remember correctly.

-Is this thick enough?
-How deep should I drill the holes?
- is 8mm a good size for the holes?
-What about the fittings?
- 1/2 inch BSP fittings are familure to me , and I know that the thread area is much longer than 10mm .
- should I just just tap the hole, screw it in and grind off the protruding remainder?
- what about the material of the fittings? regular steel, stainless, brass?

-on a side note, what about stainless tubing. I work with a hydrolics company and we have tons of scraps around. Is it worth the hassel?

im shure there are a load of other questions that I forgot, but here are a few pics of the disign I had in mind. don't laugh I actually used mspaint. It is for a A64 939 , but I want to test it out on a old socket 7 amd I have.


processor side

fittings side


thanks for the help.
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Unread 12-07-2005, 11:01 PM   #2
Etacovda
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Location: Dunedin NZ
Posts: 735
Default Re: #rotor block details

-Is this thick enough?
yes
-How deep should I drill the holes?
leave 3-5mm for the base
- is 8mm a good size for the holes?
Id go for 5mm, there abouts.
-What about the fittings?
Whatever works, works
- should I just just tap the hole, screw it in and grind off the protruding remainder?
Absolutely no reason why not.
- what about the material of the fittings? regular steel, stainless, brass?
Brass or stainless will be fine. Avoid regular steel as it'll rust.
-on a side note, what about stainless tubing. I work with a hydrolics company and we have tons of scraps around. Is it worth the hassel?
Not really. Will look pretty, but ultimately be pointless performance wise - if you're after making it pretty, go for it. If not, dont bother.

Ok, other things. Alu will be fine for a test run, but use C110 copper for your final block.

The smaller the grid, within reason, the better it'll perform, really.
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Unread 12-08-2005, 07:09 AM   #3
stev
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Default Re: #rotor block details

GreenMachine,

If you're handy and have some experience with milling and drill machines, then I would recommend having a base thickness of 1.75-2.25 thick whether it be aluminum or copper CDA110.

-Is this thick enough? Yes it is. 11mm stock should work fine. Just mill the surfaces smooth and totally flat.

-How deep should I drill the holes?
As deep as needed to arrive at a 1.75-2.25 thick base.

- is 8mm a good size for the holes?
Smaller is better in this realm. The Storm block is very fine. However, you may like the resistance pressure to be less. So, 1/8" or around 3.5mm would be ideal.

Another item to note, spacing between the holes should be 1.5-1.75mm apart from one another. This would require a drill station with a CNC measuring display. Even the X-Y-Z display type will help.

-What about the fittings?
3/8" or about 9.5mm is compatible with most WC'ing components. Make sure you leave enough room for the tubing over the fitting and a clamp. Don't make the fittings too short. There is 1/2" or 13mm, however, the tubing is rather difficult to run and bend. Besides, the fittings are enormous!

- should I just tap the hole, screw it in and grind off the protruding remainder?
Should work if using lock-tight or plumber's tape to remain leak free.

- what about the material of the fittings? regular steel, stainless, brass?
If you have an aluminum block, don't use brass or copper. The dissimilar metals are to close to one another and will react one-to-another. Your coolant mix would need too high of a concentration for corrosion protection then. Your goal is performance. So, Stainless or aluminum fittings would be ideal. All copper is nice too! Or Copper and Brass. And ditto on the steel that will RUST.

-on a side note, what about stainless tubing. I work with a hydraulics company and we have tons of scraps around. Is it worth the hassle?
If your WC'ing loop would be pressurized, then yes, the benefit is to go with stainless tubing. A system of 5-10psi has benefits. However, you'll need a fill/vacuum pressure system for the coolant. Somewhat complicated and not really worth the hassle. If not using pressure, but still using the SS tubing, then you'll need short 1.5" or 40mm of tubing as jumpers.

Mostly, I've worked in macro- and micron-channel blocks in the 3/8" fitting realm.

If you can use a freeware 2D CAD package, you could layout the drilled spacing to fit your block. Your outer block size should be no greater then 60x60mm in size. The basic chip surface area is about 30x30 max. The core area is a smaller foot print of around 18x18 or less. The 60x60 is ideal as dual & quad cores hit the market.

Enjoy!

Stev

(edited for grammar corrections only. )

Last edited by stev; 12-12-2005 at 02:24 PM.
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