Lapping Supplies

1kiwi

1kiwi

1kiwi

Soldato
Joined
25 Oct 2007
Posts
6,911
Location
Los Angeles
Simple question really. I'm lapping my TT and Q6600 this weekend and im looking for the best place in London to get a cheep wet n dry set (preferably buying in singles) + a sheet of glass.

I've heard picture frames are often used, however i'm a little scared that i might smash the thin glass with my huge man-power :p

Any ideas guys?
 
I've only been in the country for 8 months (moved from NZ) so im not really familiar with car spares shops / DIY centers. Can you be more specific?
 
Thanks for your suggestions all! I'm going to check out homebase and Halfords. Hopefully between the two i should get some results.
 
Hopefully homebase can do a little better than 1200. In terms of the glass, i found a glazier just down the road from me. He said that he would cut me out an A4 sized piece for a £5!. I agree that it might be easier to do it with a kit, but i kind of like putting everything together myself :)
 
OK, thanks for everyones replys. I now have a new question! I plan to use the 'wet method' as explained here but i also thought it wise to use w3bbo's tape method to protect the CPU.

Now, how wet do you get the sandpaper, and, typically, if i was to start out with 200, how many sheets would i expect to go through. From what i can tell, people typically just keep going until it's flat - and then move on to another grade. I'm going to be lapping my TT as well so im just trying to get an idea of how many sheets i will need.

I'm off to homebase now with my girlfriend. She's very supportive lol.
 
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Hi Guys,

Both the TT and the Q6600 are now lapped! I took all you comments on board in terms of the masking tape and the blue tack trick. My CPU was well sealed off!

I started at 400 and worked away until the copper was completely exposed. For the most part, 90% of the exposed CPU came easy. It was the front two edges that took ages!!!! I was probably going for 35 mins using the front and back method, wet n dry. I then used 600, 800 and 1200 to get a dull shine.

What product do you use to clean both the CPU and the HS?

Anyway, my arm is about to fall off and its now done. I'll post pics tomorrow.

Thanks to everyone that helped!
 
OK, as promised, here are my pics.



This is after one full rotation. Some high points there but otherwise not that bad. Could have prob started with 400.



This is after 30 mins of 200. I got it as flat as i could but there was still a little bit of light coming through.



Ok, this is where I am at the moment. Not exactly a mirror finish but I think I achieved what I set out to do, get it flat and relatively smooth. I found that when doing the back and forth, often one way would sometimes 'bite'. This unfortunately cause some surface scratching.




Protected with blue-tac and tape.





The toughtest thing about sanding this CPU was getting those outer ridges down!

 
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