Sharpening “chisel” knife

Cliff Carter Knives

Cliff Carter Knives

Knifemaker / Craftsman / Service Provider
Joined
May 30, 2011
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Hey everyone! I’m a newer maker, and I’ve just finished a “chisel” knife I’ve been working on. It’s super small, no curved edges, and each side has two bevels, similar to a razel. Bevels are all flat ground.

Question: I usually sharpen on the slack portion of the belt on my 2x72. For a knife with these grinds, will that curve the points of this very “square” knife? Should I use the platen instead, side to side? This one has me a bit confused and I figured I’d ask those with much more experience here, before ruining an otherwise nice knife.
Thanks!
 
I just got a nice set of wood carving chisels.
There is a bevel on one side and the other is completely flat.
The instructions are to pull the bevel along the stone holding it perfectly flat, and never touch the back side. This means that you raise a burr and have to remove it in some scrap wood.
I have sharpened a few times this way and it gets very sharp without messing up the geometry.
 
pmbspyder said:
I usually sharpen on the slack portion of the belt...will that curve the points of this very “square” knife?
Click to expand...
I think you already know the answer to that question, but yes, using any slack portion will give a convex grind. So will lack of care when using a stone or platen and not keeping the angle exactly the same throughout the entire stroke.
 
Appreciate the replies. So it sounds like it will be the platen (it’s not chisel ground btw).

I’m thinking sharpen the horizontal edge bevel first, then the vertical. That sound about right?

Thanks!
 
I stay far away from the platen! lol

I like to pull my belt super tight and sharpen on the top part of my KMG right where the belt hits the big 12" wheel. It is technically convex but almost flat.

Straight is tough! Sideways action on a wet stone or surface plate/sandpaper will clean it up to nearly perfect.
 
Another good suggestion, thank you Daniel! Whatever I end up doing, I’ll be doing it nice and slow. Sounds like wet stones to clean it all up...
 
Use a strop after your done sharpening. On the sharpened edge then the flat last. It can be leather or cardboard . I load it with Green Chrome buffing compound...
 
I put the angled side of the blade on a whetstone for a bit, then stop it. Really fast and easy with a chisel grind.
 
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