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Siguy is king!

B

bearthedog

Joined
May 17, 2006
Messages
4,290
I just got back two more blades from Simon. I wanted them thinned out a bit and re-convexed. These are two of my favorite blades with about as much sentimant as I could muster up for tools. After the first two knives Simon put a convex on for me, I didn't have any hesitation sending him my most loved knives. Altogether so far, Breeden Kelly, JK Kephart, RC-3, RC-4. I only have the RC's with me where I am so here ya go.
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RC-3
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RC-4
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Wow! Nice job siguy! That doesn't, I'll be getting a few blades boxed up just to send out...

ROCK6
 
Reuben,
thanks for the kind words. those two really were a pleasure to work with. glad you're happy:thumbup:
 
If I am ever in your neck of the woods I may need a private lesson on making things sharp.

That service is an asset to us all here and everyone who is chalenged at sharpening or doesn't have a lot of time should use his sharp services.
-RB
 
by the way bear, did you get my last email that i sent you about taking a look at that list?

oh and i forgot to mention before, :thumbup::thumbup: on the superman:cool:

i was thinking about next year maybe doing a cross country bike trip...if i end up in cali maybe i could swing by your house and see if i can teach you...
 
Simon I did get it didn't look yet.
Cross Country bike trip? Wow that is serious.
I may be in New York, New Jersey in a few months so let me know when you think you might be on your journey.

-RB
 
Those look great i might have to send a knife your way my RC-4 could use a nice sharpening job like those.
 
bear, it wouldn't be until next fall at the earliest i don't think.

ken, anytime ;)
 
Simon what service did you give my knives? Did you do different things to get them that way?

People they are sick and I am afraid to use them and getting them dull.

-RB
 
the strop should do well to keep them sharp for quite a while...

if i remember correctly i took them from 120 grit through to a 15 micron belt, followed by a powerstrop and then a handstropping.

the powerstrop breaks the burr (but leaves it attached) and polishes the edge some. the handstropping is to remove the burr, providing a crazy sharp, stable edge.
 
Simon,

I have a couple or questions: First, does the belt sander get hot enough to take the temper out of the blades? Second, is a convex edge too acute to use on choppers?

Thanks,

-- FLIX
 
flix, both good questions.

if the edge is really thin, then the blade can heat up quickly. when i'm grinding annealed steel, i go until the tips of my fingers start getting uncomfortable. at this point, that is hot enough to take the temper out of a sharpened edge.

when i'm sharpening, if i need to take more than three to four passes per side at a particular grit i dunk the blade in a bucket of cool water. so far i haven't had any issues with blades overheating at all.

as to the issue of an acute edge on a chopper-a convex edge is like a V edge, and can be made as wide or narrow as it needs to be. one benefit to a convex edge is that it can be easily polished up to a very high grit level, reducing microteeth which increases the stability of the edge. other edge types can be highly polished, but in my experience less easily. also, convex edges have a built in microbevel, which means that they are sturdier than a V grind of the same angle and edge thickness.

the short version is that in my opinion, every sharp edged tool benefits, or at the very minimum does not suffer, from a convexed edge.
 
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