Help with my chisel grind and Sharpmaker!

[Chief_Wiggum]

Hi all,

I spent about an hour and a half last night trying to sharpen my Livesay Woo on my Sharpmaker. I marked on the edge with a marker and made a couple light passes to get the angle right, then ground away until I made a burr on the backside. Then I lightly rubbed the backside until it was gone. Repeated with the fine hones. No doubt that it's sharp, but not as sharp as say my new BM TK-1. It certainly won't shave. Am I doing something wrong, or is this just what I should expect from chisel grinds?

Also, I noticed that when cutting paper, the edge of the paper adjacent to the flat of the blade is perfectly smooth, and the edge adjacent to the grind is slightly ragged.

Finally, the finished grind is just slightly uneven. Does it matter? Should I break down and buy the diamond rods and reprofile it?

Thanks for the help.

 

[Cliff Stamp]

Chief_Wiggum :

is this just what I should expect from chisel grinds?

No, they can be just as sharp as v-grinds. The main problem with chisel grinds is that the back side of the blade is usually very rough, this actually needs to be lapped to a high polish.

... when cutting paper, the edge of the paper adjacent to the flat of the blade is perfectly smooth, and the edge adjacent to the grind is slightly ragged.

Indicates a burr as it shows a side biased edge. To remove the burr you may have to lightly raise the sharpening angle on the back side creating a very slight secondary bevel.

... the finished grind is just slightly uneven. Does it matter? Should I break down and buy the diamond rods and reprofile it?

It doesn't matter if the height of the grind is not uniform, you would want the curvature of the edge to be smooth however. Diamond rods will be very slow to reprofile, if you want to go that way then just buy a cheap "axe" hone at a hardware store.

-Cliff

 

[Chief_Wiggum]

thanks for the tips! I'll give the backside a working over

I don't mean reprofile to a v grind, but rather, just even out the grinds.