- Joined
- Oct 3, 1998
- Messages
- 4,842
Evin:
I'm just approximating with my angles.
If you hold the spine exactly straight up down, I believe the Sharpmaker gives you about 22 degrees. Frankly, holding the spine straight up and down isn't that hard -- it's my belief there is not too much slop in that 22 degrees. Most people can hold this angle very accurately.
Now for my initial bevel, which I proclaimed to be a few degrees less than the Sharpmaker, what I did was tilt the spine toward's the stone slightly. I believe there's a lot more slop in this particular bevel. However, since this is a THINNING bevel, not the final edge bevel itself, a little slop during this step doesn't matter much. I try to keep it reasonably accurate, but I don't really sweat it. Remember, all you're doing is thinning out the edge, so that 1) the final bevel raises a burr more easily, and 2) the blade is thin at least 1/10" up from the edge. When you do the final straight-up-and-down 22-degree bevel, that's the time to really make sure you're accurate.
Recurved blades are hard to sharpen and get an edge on. Why complicate this even more by trying to put a bevel on a thick edge? Thin it out first, then the burr will come more easily, so you can concentrate on just following the recurve instead of sitting around wondering where your steekin' burr is.
Joe
jat@cup.hp.com
I'm just approximating with my angles.
If you hold the spine exactly straight up down, I believe the Sharpmaker gives you about 22 degrees. Frankly, holding the spine straight up and down isn't that hard -- it's my belief there is not too much slop in that 22 degrees. Most people can hold this angle very accurately.
Now for my initial bevel, which I proclaimed to be a few degrees less than the Sharpmaker, what I did was tilt the spine toward's the stone slightly. I believe there's a lot more slop in this particular bevel. However, since this is a THINNING bevel, not the final edge bevel itself, a little slop during this step doesn't matter much. I try to keep it reasonably accurate, but I don't really sweat it. Remember, all you're doing is thinning out the edge, so that 1) the final bevel raises a burr more easily, and 2) the blade is thin at least 1/10" up from the edge. When you do the final straight-up-and-down 22-degree bevel, that's the time to really make sure you're accurate.
Recurved blades are hard to sharpen and get an edge on. Why complicate this even more by trying to put a bevel on a thick edge? Thin it out first, then the burr will come more easily, so you can concentrate on just following the recurve instead of sitting around wondering where your steekin' burr is.
Joe
jat@cup.hp.com