A visual guide to Edge geometry vs Blade geometry

[gunmike1]

I made it this far before it started to feel like I was carving wood, I had to angle the cut or there was no way I was making it all the way through this box.






If I ever find someone skilled enough to trust who can do a large radius hollow regrind, this will probably be the first one I have done just to see how it changes.

He’s expensive these days but Tom Krein has done some really nice large radius high hollow grinds for me. He can go extremely thin without blowing the heat treat, too, but I highly doubt you’d want to go that thin with a Shaman. But a very high hollow grind with a .010”-.015” thick 15 degree per side edge would be nice on a Shaman and would slice a lot better. But the full blade wedge cuts like that really generate a lot of drag with thick blade stock no matter how thin your edge is, as you have observed.

[Evil D]

I made it this far before it started to feel like I was carving wood, I had to angle the cut or there was no way I was making it all the way through this box.






If I ever find someone skilled enough to trust who can do a large radius hollow regrind, this will probably be the first one I have done just to see how it changes.

He’s expensive these days but Tom Krein has done some really nice large radius high hollow grinds for me. He can go extremely thin without blowing the heat treat, too, but I highly doubt you’d want to go that thin with a Shaman. But a very high hollow grind with a .010”-.015” thick 15 degree per side edge would be nice on a Shaman and would slice a lot better. But the full blade wedge cuts like that really generate a lot of drag with thick blade stock no matter how thin your edge is, as you have observed.

I thought he stopped doing regrinds years ago? If he's still doing them I'll definitely hit him up. I wouldn't mind thinning out the spine down to ~3mm at the same time. It should perform similarly im rigid material as a similar thickness/behind the bevel FFG, but I also do wonder about the hollow grind wobble...I've had steering issues with hollow grinds almost like you get with chisel grinds.

[gunmike1]

I made it this far before it started to feel like I was carving wood, I had to angle the cut or there was no way I was making it all the way through this box.






If I ever find someone skilled enough to trust who can do a large radius hollow regrind, this will probably be the first one I have done just to see how it changes.

He’s expensive these days but Tom Krein has done some really nice large radius high hollow grinds for me. He can go extremely thin without blowing the heat treat, too, but I highly doubt you’d want to go that thin with a Shaman. But a very high hollow grind with a .010”-.015” thick 15 degree per side edge would be nice on a Shaman and would slice a lot better. But the full blade wedge cuts like that really generate a lot of drag with thick blade stock no matter how thin your edge is, as you have observed.

I thought he stopped doing regrinds years ago? If he's still doing them I'll definitely hit him up. I wouldn't mind thinning out the spine down to ~3mm at the same time. It should perform similarly im rigid material as a similar thickness/behind the bevel FFG, but I also do wonder about the hollow grind wobble...I've had steering issues with hollow grinds almost like you get with chisel grinds.

He does them rarely these days, but he will does do some here and there. You can reach out and he might decline to take the work, but he has done some for me over the last couple years.