Can i turn convex edge into regular V grind?

D

d.weglarz13

Joined
Jun 4, 2008
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hey guys. i am buying a knife and i think someone put a convex edge on it. my question is, can i turn it back to a V grind? or is it too late once it is convex.i know everyone wants to do it the other way around, but i would like to know what it takes to do it from convex into V. can i do it myself? or send it out? i don't really want to make the knife thinner at all, but wouldn't mind having a v grind i think. any and all info greatly appreciated. i know convex edges are really good, but i just bought some expensive bench stones, so the v grind is the best for that i think. thanks
dave
 
It shouldn't be a problem at all. Depending on the edge angle you want and what it is now, you may or may not have to thin out the edge when you cut the flat bevels. My freehand edges always end up slightly convex anyway, just from tiny variations between strokes.
 
d.weglarz13 said:
But what if you didn't want your edge slightly convex? just curious.
thanks
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If you want a perfectly ground V-edge you will need to use some kind of sharpening system with a guide that holds things at a set angle, such as the EdgePro system seen here http://edgeproinc204.corecommerce.com/, or a cheaper option would be the Lansky system, seen here http://www.lanskysharpeners.com/LKC03.php . It can also be done using power equipment, but if you do not already own the necessary equipment it would be cheaper to just send it out and have it done rather than purchase everything needed to go that route.
 
well, being that i just bought these expensive stones, i still have a lot of practice to do on them. I guess i am convexing them a little too, but was wondering more of the way the knife is going to look after I do this. I was thinking if i send it out, it would come out better looking than if i did it myself. I can keep up with the edge, but this would be my first regrinding job, so im having second thoughts. thanks. anything else i should know?
 
If I take my time, I can cut bevels by hand that look flat, even though they aren't really. As others have said, it takes either power equipment or a mechanical guide to get perfectly flat bevels. I probably can't help you much for a couple of reasons. One, the first time I cut new bevels on a knife was over forty years ago, so I don't remember it too well. And two, I care a lot more about how it cuts than I do how it looks, so that little bit of convexing doesn't bother me a bit. The best suggestion I can make is grab a few gas station specials and get some practice on them before you tackle your good knife.
 
You could use a aligner clamp (about $15) with your DMT benchstones to reset the bevel.
 
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