Quote:
Originally posted by utabintarbo
It seems that a modification like this will make machining more difficult (not a lot, but some). You might want to reconsider milling the pillars at 45 degrees.
I would also take the sharp angles out of the outer corners.
Bob
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yeah, this means i will HAVE to go cnc, with the new shape of the 0-ring and the water cavity, but I probably wouldn't want to do it on a hand crank mill anyhow, as more rpms are better for this small of cutting bits...
There shouldn't be any sharp angles in the corners, and probably not even in the bottom-to-sidewalls, i may mill it with a ball mill.
is has been brought up to mill the pillars at a 45 degree orientation, but i have not heard much to back up this consideration (see my pics earlier in the thread)...
Quote:
Originally posted by bigben2k
I'm sorry I brought up Cathar's block. I'm surprised no one did the same to my design! Although I've had the original idea for quite some time, Cathar's results inspired me to finish what I started.
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dont' be sorry, its perfectly respectable. I just didn't want people getting the wrong idea, i certainly wouldn't plagiarize another's idea. besides, its fun to come up with new stuff, even if it doesn't end up performing as well (but I can try).
Quote:
Originally posted by bigben2k
4 gpm, OK.
Now you must know that you can achieve 4 gpm through a 1/4 inch pipe, the same way that you can achieve it in a 24 inch pipe...
The difference is the pressure. It's proportional to the speed of the coolant.
In my design, I'm headed towards a 3/16 center nozzle, and if I keep it short, then I might achieve 4 to 6 gpm. The pressure drop would be the equivalent of 8 to 11 feet of head or (3.5 to 4.8 psi) or (2.4 to 3.4 meters of water). My pump can handle this, and can do it at its top efficiency (Little Giant 2-MDQ-SC).
I'd be happy to take a shot at calculating the pressure drop on your block. Shoot me some more numbers!
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ok, still getting used to this pressure drop thing. so there's a pressure drop going from the inlet into the block, or from into the block to out of it? And this is equivalent to some load placed on your pump, in terms of feet of head? I hope the drop of my block isnt too great then, as my pump is only spec'd at 120 gph at 10 feet.
anyhow, i'll try to read up on it some more, and thanks for your offer to calculate it. Does it have something to do with an equation of the form:
[Sum of external Forces] = [mass flow rate][change in velocity] ?? or is that completely different?
anyway (again) - what numbers do you need? the internals of the water chamber mostly?