Izula edge roll

Big Chris

SAHD/Knifemaker
Knifemaker / Craftsman / Service Provider
Joined
Apr 1, 2010
Messages
3,273
Let me start by saying that I really love my Izula. I carry it daily in my watch pocket and use it for as many tasks as I can. Normally used to cut wood, cardboard, zip ties, paper and tape. I convexed the edge and that made an incredible difference in cutting efficiency. The problem is that the edge right before the belly turns upward seems to continually roll or flatten out. This is never an extreme since I can usually fix it quickly with some 600 and 1000 grit paper. I just find it a slight nuisance. I am wondering if any of you guy have this problem with convexed edges. This is the first knife I have put a convexed edge on so is it possible that I have angle too acute. I try to hold a fifteen to twenty degree angle when honing. Like I said earlier this is not a huge issue just looking for some ESEE feedback.
 
mine does that a little, but only when i use the factory sheath. i've probably got a bit too thin of an edge... but it sure cuts. i've put a micro-bevel on it and it's a little more sturdy that way, but then i go and convex it again...
 
I've convexed the edges on all of my ESEE knives and haven't had a issues with the edges rolling. That area that your talking about on the edge is the point where the edge gets pushed down through the material and into the sub-surface. Maybe if your pushing down on the knife to cut through something you might be pushing down slightly to hard maybe. If you don't have a leather strop I would recommend getting one. A few passes on it at the end of the day and your edge will be back on track. If you were to do that every night/every other night I don't think you'll have any issues with your edges rolling. Check out www.knivesshipfree.com, they have some really nice strops and compounds. The other thing you can try is to put a more obtuse edge on your knife so there's more material behind your edge.
 
Is it possible that you disturbed the temper when you convexed it? Did you do it by hand or with a grinder?
 
I am usually cutting in the air with nothing behind the cut material, but it could be the sheath. I don't check the edge until it doesn't cut how I want, so the damage could occur in the sheath and not in the material being cut.

I used a soft pad in a slow speed drill. I kept my fingers on the edge to monitor temp. I would also occasionally touch it to my lips to check temp so I am quite sure temper was not harmed.

I put a micro bevel on it last night to see how that helps. I may then try raising the angle a little higher on the leather in a few days.

Thanks.
 
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