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Thread: Lapping a dog
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22nd June 2011, 05:43 PM #1Hewer of wood
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Lapping a dog
Easy; just don't feed it for a few days before you take it for a run. (Boom tish.)
I'm on a roll with diff methods and this arvo's was 90 m diamond paste.
Had read Derek's post on this, and with a dead Diasharp thought I'd take a dog for a run on it to flatten the mongrel.
The paste was US-sourced, oil based. The dog was a rough 3/4" firmer, blue/grey plakky handle; maker's mark unclear but ended in Australia. There were clear surface grinder marks on the back.
Sooo...
1. Diamond paste on Diasharp: not bad but when you get to 90% flat and it slows right down, you have to call on patience or try something else.
OK, I get the theory that the particles should embed in cast iron or mylar or whatever ... but there are other theories and anyway I was on a roll
2. Moved to coarse then fine DuoSharp. One of the remaining plates still in good nick and the work progressed quickly.
3. Then back to Diasharp and paste. The paste was thick and I found it easy to get some rocking and dubbing of the edge. Bit of oil; bit more care, good result.
So from here on a number of options were poss. to continue the lapping and polishing and these have been discussed elsewhere.
Conclusion: there are other ways of using diamond paste but this one was no speeding silver bullet.Cheers, Ern
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