convex sharpening w/ sanding block?

screwthe49ers · Feb 9, 2009

Anyone had any experience doing convex sharpening with a sanding block? It's my first time convex sharpening and I'm using this method. Don't know if my technique is wrong or the whole sanding block thing is a bad idea. The knife being sharpened is a spydie pacific salt w/ the factory grind on it. I know that reprofiling a blade can take a while, but how long is too long? BTW, the sanding block is 320 grit.

richard j · Feb 9, 2009

i dont know about the sanding blocks but i use a belt sander to put a convex edge on. i'm in ohio also and if you feel up to a roadtrip i would be glad to help you out.

Grampa · Feb 9, 2009

If you haven't seen them yet, check out these videos.

While they aren't about reprofiling, just sharpening, they are the best out there about convex sharpening! :thumbup:

Jason B. · Feb 9, 2009

this block was made specifically for convex sharpening

http://www.jreindustries.com/EMS.htm

screwthe49ers · Feb 10, 2009

Grampa said:
If you haven't seen them yet, check out these videos.

While they aren't about reprofiling, just sharpening, they are the best out there about convex sharpening! :thumbup:

Yeah, I watched those right before I started.

screwthe49ers · Feb 10, 2009

knifenut1013 said:
this block was made specifically for convex sharpening

http://www.jreindustries.com/EMS.htm

Thanks, I hadn't seen those before. Don't know how many times I've been to jre's website and never noticed!

screwthe49ers · Feb 10, 2009

richard j said:
i dont know about the sanding blocks but i use a belt sander to put a convex edge on. i'm in ohio also and if you feel up to a roadtrip i would be glad to help you out.

Appreciate it Richard, got your email too, btw. Unfortunately I work every weekend, at least for the time being. My employer is losing our contract at the end of the month, so it looks like I'll have some free time coming up soon (a little too much free time. I'd never noticed the link on your sig line was a video of your sharpened knives, holy smokes, that cut like a lightsaber!

richard j · Feb 10, 2009

if you have any free time during the week in the afternoons that would be fine too. that knife in my sig line is sharp but this one is sharper

chuck geyer was having fun cutting the paper up. its like passing the knife through the air, you dont even know you are cutting paper. this one cuts like a light saber

http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=51941310

Steel-Junky · Feb 10, 2009

knifenut1013 said:
this block was made specifically for convex sharpening

http://www.jreindustries.com/EMS.htm

I've been trying to make something similar for myself... but I'd much rather but one... Do you know the dimensions of that pad? The reason I ask is because I want to use the sand paper that I get from Autozone as it is readily available and I don't have to special order it... I think those sheets are like 4" by about 8"... Just wondering if they will work... I don't want to get stuck having to special order grit sheets over and over from this company.

Jason B. · Feb 10, 2009

Steel-Junky said:
I've been trying to make something similar for myself... but I'd much rather but one... Do you know the dimensions of that pad? The reason I ask is because I want to use the sand paper that I get from Autozone as it is readily available and I don't have to special order it... I think those sheets are like 4" by about 8"... Just wondering if they will work... I don't want to get stuck having to special order grit sheets over and over from this company.

If you buy the JRE block it comes with pack of sandpaper and a peice of leather. Your can reorder the pack or yes you can use the same stuff you get from autozone.

Steel-Junky · Feb 10, 2009

Ok cool so the regular sandpaper will fit on it... I just don't like having to reorder materials if I can just drive down to AZ and pick up a pack there... They got grits from 200 to 2000. That plus a strop and I got all I need.

screwthe49ers · Feb 10, 2009

Steel-Junky said:
Ok cool so the regular sandpaper will fit on it... I just don't like having to reorder materials if I can just drive down to AZ and pick up a pack there... They got grits from 200 to 2000. That plus a strop and I got all I need.

Wal-mart has the same stuff, in the auto section. Think I payed $2.89 for a 5 pack in the same size.

Steel-Junky · Feb 10, 2009

Do you have this sharpening block... does the Wally World stuff fit on it?

screwthe49ers · Feb 11, 2009

No, I don't have the block but the sand paper is the same size as what you have.

Dog of War · Feb 11, 2009

A rubber sanding block, the kind used for auto body work, works very well, and should only cost a few dollars. I prefer to use emery paper or cloth, but wet-dry silicon carbide abrasive paper works fine also. Spritz with WD40 for better abrasive life and cutting action.