Need a good heat sink?

When grinding especially heat is a real problem. If your grinding a flat piece heat is the ultimate enemy. And if your grinding round stuff on a
spinner all day the bearings make heat, causing the centerline to grow and shrink.
Here's the best damn heat sink you can have on the planet. Take a heat sink from an old computer. pentium 2 chips were the largest and had huge heat sinks on them. Aluminum rocks, but copper is even better. Take the heat sink and cbore 2 holes in opposite corners and glue "wire edm" magnets in them slightly below the surface. I'm telling you guys it will suck the heat out of a block in seconds. If using it on a spinner for round work, place the heat sink on the back where the bearings are, obviously point the ribs up because heat rises. you will keep the spinner ice cold making it repeat to within a tenth all day. Normally when you grind a bunch of parts you use your surface plate as a heat sink, moving the parts around the plate as you rough them out cooling them down. Add the heat sink in the pile and it will cool your surface plate down also.
If you need a quick chill down, blow some air thru the ribs and it will cool on steroids.
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If you are trying to save amc, good on you. I'll read it.
Wes
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Well Vinny, that's all well and good. For an amature. Some of the most kick-ass tips here included using never-sieze on bolts. Now, that young man, is a world class sort of tip. Something nobody would have thought of, if not brought down from on high. Something silly as fabricating a heat sink to keep bearings cool...
Keep trying though, you might accidentally get something as cool as the never-sieze if you keep at it.
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vinny wrote:

I wouldn't know a surface grinder from a Simca, but I do know that if you want to move even more heat out, you can use a motorcycle head in place of a conventional electronic 'heat sink'.
http://www.hotshotmotorworks.com/images/TEST%20012.jpg
That's how Horowitz and Hill evaluate power - hungry electronic components: http://en.wikipedia.org/wiki/The_Art_of_Electronics
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On big stuff, great idea. it would be great on grinding a moldbase plate.
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Ever use one of those "cold air guns" Its a air vortex thingie:-) Works great with standard air line pressure & quick connects- adjustable pressure, with magnet mount & loc line for a nozzel. Ice cold air comes out. helps in the Bridgeport for carbide shell mills. In the summer condensed water drips thus making-auto misting & rusting<g>
\|||/ (o o) ______.oOO-(_)-OOo.____________________ ~ Gil ~ the HOLDZEM king
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Ever use one of those "cold air guns" Its a air vortex thingie:-) Works great with standard air line pressure & quick connects- adjustable pressure, with magnet mount & loc line for a nozzel. Ice cold air comes out. helps in the Bridgeport for carbide shell mills. In the summer condensed water drips thus making-auto misting & rusting<g>
\|||/ (o o) ______.oOO-(_)-OOo.____________________ ~ Gil ~ the HOLDZEM king
Any idea how they work? Pretty damn amazing.
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How bout a pedal-operated mist-er, or even pedal-operated air? Or even just needle-valve operated?
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The best spinners have an airline connection, so they can push air thru the bearings, allowing them to run with coolant. So ya steel a bit, and run a line that blows past the heat sink, causing a freezing effect lol Friggen drink a soda and have a wet hand and touch the spinner it'll be like your tongue sticking to a fence post.
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