Originally Posted by
bill3152
Thanks for the comment. Well Im not a scientist but Ive used many different materials to do some scratch tests. I used glass at first but realizing that glass is as hard or harder than most stone even though alot of whats in a Jnat is silicate. Anyway, I used a piece of plexiglass, ran a dmt on it , then I took a tomo nagura rounded corner as I use and ran it on the plexi. Big difference in scratch patterns in the 2 samples. Now what are scratches? These are marks made by an abrasive. Ive tried this on the side of a coke bottle, same thing and a scrap of marble as well. I used the material being scratched held vertical so as not to say the plate is heavier than the tomo. Many tomo naguras are at the same level particle wise as finishing stones, which is probably 6-10k maximum. I think the rapid breaking of slurry is occuring with dia plate slurry as a result of the abrasiveness of the larger particles on each other. A dmt or atoma is made to cut into steel or stone, thus the teeth and orientation of these diamonds, stones while they can break off large particles if your not careful, IMO release smaller particles. Again Im not a scientist but I feel these observations make sense to me. I welcome any other comments or experiments any others have done. If what Im saying doesnt make sense, thats ok. It just makes sense to me.