Cliff Stamp
BANNED
- Joined
- Oct 5, 1998
- Messages
- 17,562
I was out awhile back looking for a set of micro star keys in a new hardware store, which I finally found when I saw a $1 sharpening stone, 2x6", no name, no box. I bought it on a lark mainly, but on a semi-serious not I wanted to check and see how effective it could be on the new steels as it is often argued that they demand diamond or other high end hones to achieve optimal sharpness.
I gave it a few test passes and the surface was horrible, it was actually dished in the center like a spoon. It was soaked for about a half an hour and then lapped with sand and water on a concrete block under it was smoothly abraded over it entire surface. The block works fine on its own, the sand just makes it much faster.
I used the South Fork which was blunted to less than 10% of optimal after
some recent cardboard cutting and recut the edge at 7.7 (1) degrees per side on the coarse hone. I was kind of surprised the angle was so consistent, I checked it at three places along the edge. Anyway, checking the blade under magnification it was cleanly abraded full to the edge. The burr was removed with a couple of passes at a highly elevated angle.
The edge was examined under mag (x10) and free of any burr and honed clean, really coarse, there were teeth up to 0.1 mm deep (almost at the point where they could be seen by eye). It was then reset at the primary and then the micro reset three more times just to check consistency and there were no issues with getting a clean edge.
With no stropping, the blade would shave, push cut newsprint about an inch from where it was held from the fingers and took 112 (11) grams to cut light thread and 0.29 (2) cm to slice light cotton under a 200 gram load and 0.61 (5) grams to slice the cotton under a 100 gram load.
Once this edge needs to be sharpened I'll check the other side and then likely see how it responds to a hard black arkansas.
-Cliff
I gave it a few test passes and the surface was horrible, it was actually dished in the center like a spoon. It was soaked for about a half an hour and then lapped with sand and water on a concrete block under it was smoothly abraded over it entire surface. The block works fine on its own, the sand just makes it much faster.
I used the South Fork which was blunted to less than 10% of optimal after
some recent cardboard cutting and recut the edge at 7.7 (1) degrees per side on the coarse hone. I was kind of surprised the angle was so consistent, I checked it at three places along the edge. Anyway, checking the blade under magnification it was cleanly abraded full to the edge. The burr was removed with a couple of passes at a highly elevated angle.
The edge was examined under mag (x10) and free of any burr and honed clean, really coarse, there were teeth up to 0.1 mm deep (almost at the point where they could be seen by eye). It was then reset at the primary and then the micro reset three more times just to check consistency and there were no issues with getting a clean edge.
With no stropping, the blade would shave, push cut newsprint about an inch from where it was held from the fingers and took 112 (11) grams to cut light thread and 0.29 (2) cm to slice light cotton under a 200 gram load and 0.61 (5) grams to slice the cotton under a 100 gram load.
Once this edge needs to be sharpened I'll check the other side and then likely see how it responds to a hard black arkansas.
-Cliff
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