Spyderco Forums

How do you sharpen a convex grind without taking it to a belt sander the way they were put on by the knife maker?? I have several and so far the only way I can see is to tip the blade up so only the very edge is hitting the stone. Sooner or later the edge is going to get too wide or flatened & need some serious work. If you don't have a belt sander & know how to do it right your S out of luck unless you send it back to the maker. I think MORAN started using this grind and I know SCAGEL & a few other custom makers & very few production knife companies use it. So far everyone I ask can't come up with an answer. Anyone out there have any ideas??? Dave

I've put a convex <b>edge </b> on a few knives. a convex <b>grind </b> is easiest to put on with a slack belt.

convex edge can be done with sandpaper, mousepad, and patience.

My Word, My Honour, is my Life.

Vampyrewolf, There are a lot of people out there with knives that have a convex grind. I don't have a belt sander but used to grind & polish turbine generater blades of various sizes & materials includig Titanium. On a high speed belt sander it only takes a few seconds to screw it up. If you don't keep moving the item being polished you end up with Dips, Waves & too much stock removed. I used to see a lot of guys screw up a knife blade that way. I'm looking for a way for the average knife user . Way back when Scagel made knives with the convex grind and others after him I wonder how they told customers to sharpen them ? Grinding & polishing Titanium is a story in itself. Thanks. Dave I

I have a Fällkniven H-1 which is beautifully convex-ground.. What a SWEET hunting knife! I have plenty of complements for the type of grind which Fällkniven uses on their blades! <img src="smile.gif" width=15 height=15 align=middle border=0>

Sam

have scars will travel..

Just use fine sandpaper on a mouse pad, the padding allows the paper to follow the edge's natural curvature.

By the time you read this, you'll have already read it.

Here are some details on the technique that others have mentioned:

http://www.mhcable.com/~yocraft/sosak/convex.htm