When you guys pick up vintage hones, how do you select a slurry stone to use with it? Do you choose different stones based on their grit?
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When you guys pick up vintage hones, how do you select a slurry stone to use with it? Do you choose different stones based on their grit?
Ideally, you would use a matching piece of hone to create the slurry. If that is not available, other choices include a) a finer hone (i.e. using coti slurry on a BBW) b) a hone that does not break down (i.e. using a DMT to raise a slurry) c) cut a piece off the big hone and use that to make slurry d) other creative options I don't know about yet e) not using slurry.
I used to use DMT for all stones I have no slurry stone, now I switched to Atoma diamond plate.
If you have coticule you can get slurry coticule fairly easy.
Eschers usually , but not always, come with their own slurry stone.
Some synthetic stones come with synthetic nagura.
Dia Sharp (DMT) sells a credit card sized 325 that I use for stones if I don't have a slurry stone of the same type. It is about six bucks. Using an 8" lapping plate is doable but cumbersome. :)
You have to be very careful about using a synthetic rubbing stone. For example, the various grit Naniwas come with the same rubbing stone (if you get the ones that come with rubbing stones - they don't all), and it's quite coarse. I believe the synthetic rubbing stones are designed to clean off the hone, not create a slurry. I wouldn't use one to clean a hone either, though, because I would be worried about grit contamination.Quote:
Originally Posted by mainaman
Then what do you use when you pick up a vintage natural without a matching SS? If you lap a hone with a 325 diamond stone, then wouldn't using it to create a slurry dig an uneven surface?
On the harder stones I have (such as a C12k or my vintage Thuringian), my DMT 325 does leave scratches. For these, my personal choice would (I say "would" because I don't use a slurry on my finishers at all) be to use a Spyderco Medium pocket hone (because I already have one). They are very hard ceramic, and don't break down when raising a light slurry.
I ask because I stumbled upon an old Tam O'Shanter and acquired it. it's my second stone. My other is a Coti. Sometimes I read that the Tam is of a lower grit than the Coti, and sometimes I read the opposite, so the decision to use my Coti SS is now complicated.
I'd love to lap the Tam and try it out, and if it's really a finishing stone (for use after my Coti) then I'll only use water, but various forum posts disagree about the Tam's role. For some it's used in the middle of a progression and for others at the end. One needs slurry and the other doesn't.
Have any advice?
Which DMT credit card do you use? I see them as listed coarse, fine and extra fine...Quote:
Originally Posted by JimmyHAD
I use the 325 which is the coarse.Quote:
Originally Posted by LegalBeagle