Convexing an edge

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pedicabdriver

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Nov 29, 2007
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So I've been wanting to try out the mousepad and sandpaper method for convexing an edge for some time now, but for the life of me I cannot find a mousepad anywhere. What can I use in place of one?
 
you dont have one for your mouse? anything with some give but still slightly firm. try a phone book with the outer cover removed.
 
A piece of leather will work. You can lay the sandpaper over your strop, resting on a hard surface.
 
Buy a padded sanding block from the hardware.
 
I convex with a hard flat stone. I just rock my sharpening stroke. It is much easier than you'd think. Heck it is hard to not convex an edge free hand sharpening.
 
If you free hand sharpen with a few different angles via muscle memory(dont care how consistent you think your angles are), your going to get a convex edge.
 
What about a long Drywall sanding block? You can find them in the drywall finishing section of hardware stores, I estimate there length at 6" and 3" wide.
I have one and was going to try it in a vise. what do you guys think ?
 
Last edited:
boxerman5569 said:
What about a long Drywall sanding block? You can find them in the drywall finishing section of hardware stores, I estimate there length at 6" and 3" wide.
I have one and was going to try it in a vise. what do you guys think ?
Click to expand...


As long as it has a bit of give it should be OK. You don't want it spongy soft mind you, but firm with the slightest bit if give to it.
If a drywall block is like a sanding block for auto body work you should be allright.

Chuck
 
I just ran into this myself, I tried convexing one of my paring knives.

A folder over newspaper with the sandpaper resting on it had too much give, I rounded off the edge. Not good.

I have a mounted leather strop, I tried just resting the sandpaper on top of the leather. That worked really well.
 
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