Flat ground edge?

Razor

Gold Member
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Dec 8, 1999
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I always thought this edge cut good and was easy to sharpen. Any opinions? Thoughts? Ideas?
 
Is that the same as zero ground edge? I was just wondering if some edges are better for EDC? Convex? Hollow ground?
 
Zero ground is like a scandi. Flat ground blades would be like most Spydercos, fully flat blade grind with secondary bevel.

Best for EDC? I like full flat grinds.
 
You're mixing terms for edges and blades.

Notice that Jason changed your term "flat ground edge" to "flat ground blade."

A flat ground edge would be a V edge. A flat ground blade is one with flat sides. Fully flat ground has flat blade sides that run from the spine to the edge bevel, like a Spyderco Military. A zero-ground flat blade has no edge bevel. The flat sides of the blade come together to form the edge.

The real issue for edges, both in terms of how well they cut and how easy they are to sharpen, is the thickness of the edge (measured at the edge shoulders) and the acuteness of the edge bevel. Most knives will have either V edges or convex edges. You can't compare them unless you know what the underlying geometry is. A V edge can cut better or be more robust than a convex edge, or vice versa. And a V edge and a convex edge can be virtually identical.

The easiest edge to sharpen is an edge with a microbevel. Sodak has a good sticky on that subject.
 
I prefer flat ground edges to convexed edges because I find them easier to sharpen freehand against my Spyderco Sharpmaker rods. I use the rod in my hand rather than the sharpmaker jig and just lay the edge flat against it and make strokes against the edge. Convexed edges are harder for me to sharpen like this because I can't feel the edge laying flat against the stone as easily and it is harder to be sure I am hitting the apex.
 
Convex edges are super simple to sharpen. Many use wet/dry sandpaper and a mouse pad. Bark river knives are famous for convex edges. Very easy to maintain.
 
Still not sure if OP is referring to the edge bevel or the blade grind (cheek?)

For edc folders, i like a full flat (blade) grind with a standard V (bevel) grind. Seems to be a more all rounder. Although a hollow (blade) grind with a V (bevel) grind has a really nice laser like slicing capability which i'm starting to get addicted to (i like some over-engineering in my knives).

Convex never really grew on me. I only have 1 (a bark river) in convex, and it's never really in my rotation.

Thing is, EDC work in an urban setting will, more often than not, call for more slicing than any tough/rough work (like batoning or prying, not that it's recommended with a folder), so i find a slicer profile to be more beneficial (and fun to use)
 
[video=youtube;XjHPqlTIMFg]https://www.youtube.com/watch?v=XjHPqlTIMFg&feature=share[/video]
 
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