Lapping machine

sounds like some that could work, you can even make a business out of this!

i would just use 2500-2000 sandpaper and hand lap it to be safe. do the heatsink too. make sure its all level and not sanded too much on one side otherwise the heatsink will not get direct contact.

Sounds fine.... just ensure levelness.

usually when they mill heads they make sure everything is leveled! cause you know what will happen when you slap the head on the block!

2000g even with a power device will not stand up to the load and be toast long before most HS will be flat.
Emery, on the other hand is designed for metals and would flaten the surface much quicker and last far longer.
Dependent on the surface quality of the HS surface...
1. 320g or fine first
2. 600g emery
3. Perhaps 1200 or 1500
4. then what ever max grit you chose.

BTW, my first sheet of 320g emery has lapped at least 7 or 8 copper HS for me and still cuts well... 2 Ultra 120, 1 TRUE, 1 IFX 14, several BT
Also, the automotuve refinishing type wet/dry cuts better and last longer with water mixed with dishsoap like you might formulate for washing dishes. Also, the likes of WD40 or LPS1 also works well to lube the wet/dry paper for longevity but is a bit more fun to clean off the HS.

Further more, like the issue with many Thermalright HS which were milled with excessive clamp pressure which causes the bowing effect. That will be a challange to the process to avoid.

It should work i did somthing like this with my friends computer and it worked pretty good. I would just finish it off by hand to enshure quality and levelnes.

http://www.overclock.net/case-mods-g...ld-compaq.html

yeah just be careful and make sure its all level otherwise your heatsink will not be able to cool the hole of the CPU. Good Luck.

You know... I've been thinking about this, and just to maintain evenness... maybe you can also spin the item being lapped?

Not too fast, like 1-2 rpm, but, enough that it can correct for any human error in setting it perfectly flat.

By the way, if this makes you a millionaire (or even a thousandaire), I want it on record the spinny idea was mine =p

all of it must be perfectly level.
unlike doing it by hand, one little oops and you just bought someone a new processor.

im not sure witch would be better, the abrasive moving and the cpu fixed or the abrasive fixed and the cpu moving.

abrassive moving
cpu moving at 200 rpm not my idea of fun you know
suddenly the clamp gives way zomg
new i7 processor from newegg on the way
XD

i must agree, cpu spinning at 220 and comeing unclamped would not be a good idea. not only would i have to replace someones 100+ cpu but what if i was in the path of flight.....ouch... i have been messing with coral draw x4 trying to come up wit a basic design but man this is a slow process lol. i am actuly thinking about makeing desk with a 2ft square recess glass top and the 10" lap in the center.. off set it by the thickness of the sand paper and make it adjustable so if i try a new paper i can adjust it to it. sill in the process of blueprints and figures but we shall see if maybe i can do this.

actuly useing the ziff sockets would be good if i could make a handle so i could hold it, but it could also make the lapping unlevel if not done right becuse you only realy want to use the weight of the cpu to push it on the sand paper.

Any holder would have it's risks, sure, but, I'd think this is a "safer" method considering possible pin damage.

I'm sure there's a good balance point between the 2.

good luck on lapping.