new LV honing guide question

Re: new LV honing guide question

Jack Guzman from Maine

>Most likely your blade has an uneven grind(out of parallel to the back). Also,an imperfection in the back(or a poorly machined chisel) could be causing the blade to be held unevenly.Check with other blades in the guide,if it always has the same unevenness,it is a defective guide.I'm sure LV would want to know about it in this case.---Jack

one other thing

Jack Guzman from Maine

>Make sure that both clamp screws are threaded in an even amount.I've heard that an unevenness here can cause your problem.---Jack

Re: new LV honing guide question

Alan Tolchinsky

>I've sharpened 4-5 blades with it and haven't found this problem. Is your cutting edge perpendicular to the length of the blade? Is your blade in the jig against the fence? Gotta be something like that.

Re: new LV honing guide question

les winter

>Yup. I put a square to the blade and sure enough it's out of square. Just a hair, but enough. Thanks for the help.

Now a second question: when I load the blade, the right corner catches on the angle setting clamp and has snapped off a piece of the cutting edge a few times. It happens when I tighten up the hold down nuts. Any thoughts?

thanks

les

Re: new LV honing guide question

William Duffield, on the Cohansey

>Uh-oh. The same thing is causing both of your problems. By fiddling with it enough, I got mine to exhibit the same behavior, except I stopped before I damaged the edge or twisted the blade. Here's what you need to do, to both understand your problem and to correct your procedure so it won't happen again.

When you have set up the guide and the angle setting jig, and are ready to tighten the clamp, make sure you are holding it upside down in your right hand, with the jig pointing away from you, with your index and middle finger under the jig, the other two fingers under the guide itself, and your thumb on the upper, front surface of the blade. With the thumb, you can pull the blade tightly against the parallel fence of the jig. However, you can also use your thumb to force the edge of the blade hard against the angle setting stop. YOU DON'T WANT TO DO THIS! Instead, with your thumb, pull the blade back away from the stop just a smidgen as you tighten the blade clamp knobs with the fingers of your left hand. As the blade tightens, the clamp pulls it away from the face of the angle jig, which is not precisely parallel with the surface of the clamp. You wouldn't want it to be, because if it were, the blade edge would dig into its surface, dulling the blade. If the blade is pushed hard against the stop, it can't move to seat flat against the clamping surface, and the clamping force puts stress on the blade. This might just take a little paint off the stop, or it might twist the blade, resulting in your first problem, or it might break the corner of the edge off, resulting in your second problem.

Hope this is clear. Hope it helps.

Re: new LV honing guide question

Alan Tolchinsky

>Sorry, got me on that one. Maybe just leave the blade a hair away from the stop and this shouldn't happen.

Re: new LV honing guide question

les winter

>nothing like the voice of experience.

thanks all.

Les