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TOPIC: Can't get the bevels even!

Can't get the bevels even! 1 year 3 months ago #10311

  • FedWayJohn
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Hey all,

After using my WE for a few weeks, I'm able to get some pretty nice edges on most of my knives. My issue is that no matter what I do, the bevel on the right side of the knife, as I sit facing the machine, is always thicker that the one on the left. This applies to every knife I've tried so far; Spyderco, Kershaw, GEC, etc.

My thought is that the knife is not set perfectly perpendicular in the clamp, but I've checked that several times, and as far as I can tell the knives are properly clamped. They are certainly firmly clamped. I also use the angle cube to set the stones as accurately as possible. I've found that that can be trickier than it seems, but I get it eventually. Is it possible the machine is somehow assembled wrong? It came from the company assembled save for the board. It seems fine but maybe I'm missing something.

This is driving me nuts. I'm getting better at putting the edges I want on my knives (room for improvement though), but any help resolving this problem would be greatly appreciated.

John
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Re: Can't get the bevels even! 1 year 3 months ago #10312

  • KenBuzbee
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You've hit the two most common scenarios.

A. The blade thickness throwing off the angle. But if you're using an angle cube, I can only assume it's not this.

B. The blade not being truely vertical. Given "Not A then B ;) " it is most likely this, even if it looks true. Have you tried the trick of using a bit of foam tape or chamois? You set it in the jaw before mounting the blade.

It may sound weird but it makes perfect sense. Imagine your left jaw is vertical, you insert a blade (vertically) which at the spine touches both jaws and at the top of the clamp there is equal space on either side between the jaw and the blade. You tighten the top & bottom screws. Now the blade is pressed flat against the left jaw. In reality, it's leaning to the left. It will feel perfectly solid but it's not truely plumb. By putting a bit of material that somewhat compresses between each jaw and the face of the blade, you help hold it plumb.

If your blade is truely plumb, I have no idea....

Ken
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Re: Can't get the bevels even! 1 year 3 months ago #10313

  • SamuelGabriel
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There is a third reason for uneven bevels....
If A and B are ruled out, then it means your right arm is stronger than your left and you need to grind more metal off the left side. As you grind more off the left (after the edges have met in the middle), the left bevel will get bigger and the right bevel will get smaller, until they match. When the bevels match you have centred the blade and can then move on to the 200 grit and resume grinding with alternating strokes.
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Re: Can't get the bevels even! 1 year 3 months ago #10314

  • KenBuzbee
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Interesting. I never would have thought of that...

Ken
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Re: Can't get the bevels even! 1 year 3 months ago #10315

  • Mikedoh
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When you are trying to first form your burr, are you starting on the right side and working till a burr is formed, and doing nothing to the left side?

If so, this may be the problem. This will cause more metal to be removed from the right side. You want to do roughly the same number of strokes per side to keep things even.

Just a thought
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Re: Can't get the bevels even! 1 year 3 months ago #10316

  • SamuelGabriel
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I found I do it a bit, because of the technique I use. I use the 100's to do all of the edge setting and profiling of the blade, then work my way up the rest of the grits just for enhancing the finish of the edge and bevel of course. On a knife I haven't ever previously set, I grind just one side till I get a burr one the other side. Then I do the other side till I get a burr on the first side. Then I check the depth of the bevel on both sides and adjust as necessary till they are even, then move on to 200's and start alternating strokes. That way I get a perfect finish and razor sharp every time, and relatively quickly, depending on how bad the blade was to start with. I picked that method up from tips gleaned watching YouTube videos of Clay doing customer's knives.
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Re: Can't get the bevels even! 1 year 3 months ago #10317

  • KenBuzbee
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Got'cha. When I have a long way to go (major reprofile) I'll alternate 100 left 100 right. As I get closer I'll drop to 50, then 20 then alternating from then on. I don't tend to use much pressure so the "stronger arm" thing never occurred to me.

Ken
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Re: Can't get the bevels even! 1 year 3 months ago #10318

  • cbwx34
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In addition to the above, check this thread also, a similar problem was described... turned out the clamp was bent.
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Re: Can't get the bevels even! 1 year 3 months ago #10322

  • mark76
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It's a FAFQ! :cheer:

Look here for more info and similar questions/answers: wickededgeusa.com/wiki/index.php?title=F...sked_Forum_Questions
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Re: Can't get the bevels even! 1 year 3 months ago #10331

  • Geocyclist
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Hey John, welcome to the forum.

Are the bevels even before you start? And you are making the right side larger during sharpening?

Or is the knife that way to begin with?
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