Thread: Use of the BBW?

I asked Rob Celis about this business of BBW being used as paving and he says yes, it is - but it's a different stone altogether with virtually no garnet content. Looks the same, but very different.

I had this mental picture of furtive Parisians honing their razors at night on the kerbstones.......................

Originally Posted by JimmyHAD

Very interesting Ben, thanks. Makes me wonder if the reason some coticules cut faster than others would be because they happen to have a higher percentage of garnets ? Probably that and/or the composition of the binder in that particular layer of rock.

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Jimmy

I agree with you that some cotis have a higher garnet content. My 6x2 has noticeably more red color in it than my 8x3 combo and seems to be a faster cutter.

Originally Posted by ben.mid

I'd incorporate it into your coticule routine. I find that's where you can bring out the best in them.
Set the bevel with the Coticule as usual.
After that, move onto the BBW with a thick slurry, watering it down every ten laps with a few drops of water.
When it's just water, do another twenty or thirty very light laps.
After that it's back to the Coticule with just water for a hundred laps.
You may find the laps required are completely different, due to the nature of a natural material.

That my dear Ben, I gotta try...especially from the note you said later that garnet size in BBW is usually larger than equivalent grit stone (I guess a yellow coti will be considered an "equivalent" stone?). This is good info...Me like...Me like a lot .

Thanks for sharing and the OP

Originally Posted by ben.mid

I'd incorporate it into your coticule routine. I find that's where you can bring out the best in them.
Set the bevel with the Coticule as usual.
After that, move onto the BBW with a thick slurry, watering it down every ten laps with a few drops of water.
When it's just water, do another twenty or thirty very light laps.
After that it's back to the Coticule with just water for a hundred laps.
You may find the laps required are completely different, due to the nature of a natural material.

Ben,
You rock man . Tonight, I implemented this method of yours on my Respecto #77 using my Coti/BBW...Boy, what an edge!!!...I didn't even need to go to a 12K Naniwa, which I normally do.

Thank you

I use mine for knives, that's it...

I think Bart is doing some testing to determine the capabilities of the BBW, perhaps to see if it can be used from start to finish.