lansky angle question

[DaveH]

OK, this is going to sound naive. I pulled out my decade old lansky diamond sharpener to reset the bevels on a sebenza. Magic markered the sides. 20 degress slot touches the actual edge but missed the bevel and "shoulders".

So I dropped to 17.5 the most shallow setting, so it was taking off where I wanted. I worked through down to the fine stone. It took quite a while. There is still the finest of lines near the edge.

I stopped and was thinking I should finish up on a sharpmaker at 40 setting, 20 per side.

Is that the best approach to finishing off the edge? or should I continue at 17.5 all the way to the edge, then switch to the sharpmaker?

Thanks

 

[TedGamble]

All authoritative sources that I have read state the you raise a burr at each angle. A burr is proof you have taken the angle all the way to the edge of the blade. Otherwise, you have fallen short, which means that there is still more metal to remove.

 

[Gshock300]

hmmm.... depends on how much from the edge you are Id say.
If youve removed all the shoulders and the majority of the primary bevel, Id say the 40 degrees on the sharpmaker will take care of the secondary bevel no probs if your talkin about a remaining line of less then a millimeter width after setting your primary.
Your going to raise another burr anyway with the medium rods at 40 degrees. and hone. (and hone or not the burr off with your ceremic rods.)

 

[Cliff Stamp]

Is that the best approach to finishing off the edge? or should I continue at 17.5 all the way to the edge, then switch to the sharpmaker?

If you continue all the way to the edge you waste metal because you will just grind off that sharpened edge with the Sharpmaker, this is however the most efficient way for you time wise. It also speeds up subsequent sharpenings significantly as in many to one.

-Cliff