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Originally Posted by naS
well
the base is fairly flat , its still have the finish from the flat endmill .. and its all black and ugly, i must lap it .. cant stand watchin it like that 
i think i have a cupple of cloth wheels at my pa workshop so it wont be a problem.. is that diamond pastes common or will it be hard to find ? shall i ask for "diamond polishing paste" or smt like that? |
Polllishing takes less effort for better result, imo :P
I dont know if diamond paste is common, the one I have is
this. We use it at work to get a very good finnish for stuff to go in our SEM (electron microscope) as without it there isnt a very good picture.
The other one I got with a heatsink lapping kit, but wasnt much good, but that may be because I used water with it. From the buehler site it appears the non-diamond ones have much smaller size particles, and so probably take much longer to use.
This stuff, with a 500rpm 150mm wheel anyway, needs lubricant. With just water you will get burn marks on the copper. Not sure what its called but its a green liquid (not very helpfull I know)