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Knife grinding jig?
Posted: Tue Aug 11, 2015 4:30 pm
by ibskot
Forgive me if this is in the wrong forum. Anybody use their SS belt sander or maybe disc sander to make or grind knives? II'd like to try and wondering if anybody can give me a leg up.
thanks
Re: Knife grinding jig?
Posted: Tue Aug 11, 2015 6:01 pm
by Mike907
I know it's not the belt sander, but you might get tips from this Video Shop Tip on sharpening knives with the strip sander. I can't get it to load on my computer, but maybe you can. On the bulletin board, you can see the knife holding jig and the plans for it.
http://www.shopsmithacademy.com/Tips_Ar ... Knives.htm
Also, here is the link for the Chisel Sharpening Jig, with links to other sharpening videos -
http://www.shopsmith.com/ownersite/cata ... ingatt.htm
Mike
Re: Knife grinding jig?
Posted: Tue Aug 11, 2015 7:37 pm
by charlese
ibskot wrote:Forgive me if this is in the wrong forum. Anybody use their SS belt sander or maybe disc sander to make or grind knives? II'd like to try and wondering if anybody can give me a leg up.
thanks
Yes, this is the correct forum.
Yes, I you can use the Shopsmith for making and sharpening knives. You have a wide choice of jigs and Special Purpose Tools to get this done. My recommendation is the grinding wheel setup or the strip sander.
I ave used the disk sander to sharpen lathe tools using this jig.
http://www.shopsmith.com/ownersite/cata ... gguide.htm
and the conical disk to sharpen plane and jointer knives using this jig.
http://www.shopsmith.com/ownersite/cata ... rpener.htm
My all time favorite for
carving knives, chisels, and lathe tools is the Strip Sander with this jig.
http://www.shopsmith.com/ownersite/cata ... ingatt.htm
There's also the grinding wheel. -
http://www.shopsmith.com/ownersite/cata ... lguard.htm and wheels with arbors. -
http://www.shopsmith.com/ownersite/cata ... lguard.htm
Both the Strip Sander and the grinding wheel can be run in reverse with a standard Mark V. Just mount the Strip Sander on the spindle side of the headstock. To reverse the grinding wheel just rotate the grinding guard and work from the back of the Mark V.
Re: Knife grinding jig?
Posted: Tue Aug 11, 2015 8:31 pm
by ibskot
Thanks for the responses.
I mean grinding bevels on knife blanks before honing.
Caveat...I have the conical sanding jig, belt sander and the disc sander. I don't have the strip sander...
Re: Knife grinding jig?
Posted: Wed Aug 12, 2015 1:05 pm
by charlese
ibskot wrote:Thanks for the responses.
I mean grinding bevels on knife blanks before honing.
Caveat...I have the conical sanding jig, belt sander and the disc sander. I don't have the strip sander...
If you mean the 20 degree or so edge on a knife blade, then you might be able to use the conical disk jig intended for jointer blades. The trick would be to angle the table top to the desired angle. You would have to re-mount the knife blade to the other side of the jig for its second side.
The overall shape of the metal to form a knife blade could be done on a belt sander or disk sander.
If you are making only one knife the strip sander and conical disk probably can be used with care to do the job. If you want to make more - it would be best to invest in a strip sander.
Re: Knife grinding jig?
Posted: Wed Aug 12, 2015 3:37 pm
by kenbu
Search the forum for belt grinder. May be what you're looking for.
Ken