Rod Grinding Rest

Patrice Lemée

Patrice Lemée

Joined
Aug 13, 2002
Messages
5,703
Found the pics. Like I said, I did not find that it worked that well but my lack of grinding experience may have something to do with it.

Pad
 

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Two things come to mind looking at the pics. one is that is slick. It allows you to keep it the same height on the grind, and since it's a rod allows you to transition into the roll of the blade.
Second thing is if there was an adjustable stop between the rod where it mounts into the holder, (opposite end that faces wheel). It would allow you to let the back edge of the knife ride against it which will control how far up the blade the back edge of grind line goes. Please excuse this quick,crude hand drawing, but this is what I am talking about.

000_1126.jpg
 
Thanks that is a great idea! I'll try it to come up with something and post the results.

Problem is George will think I am cheating even more. ;)

Pad
 
I had thought of a similar rest, but the trouble with the adjustable stop is that most knives taper towards the tip (taper from spine to edge). So while the grind would be set for a perfect position near the ricasso, it would vary depending on the profile of the blade That would make it a little tough to keep the consistent grind line. But, I haven't tried it out, so it may be workable.

--nathan
 
A little, the arm is 3/8" thick so it pretty stiff but the way it is attached to the bench allows a little movement if you put too much downward pressure on it. If it works well I'll make it stiffer.

Pad
 
Thank you for the idea! I think it could maybe be improved by grinding a flat surface on the top and have a transition go to round edges and like mentioned, a back stop to rest the spine against.
 
Dustin, the flat is a very good idea. One of the problems I was having was with he extreme curvature of the rod. Thanks. :D

Pad
 
Cheaty McCheaterton! :D

I like full distal tapers and mild convex bevels, so I'm not sure that would work for me. But if it works for you, go for it! Cheater.

;)
 
Hey, I am just developing this to help the knifemakers who are challenged in the motor skill department, not me...yeah that's it. ;)

Pad
 
This can also be found in the "Grinding" section of Bob Engnath's writings at Engnath.com, along with a lot of other really great stuff.

R.I.P., Mr. Engnath, and thank you.
 
You could go with a section of pipe to get a bigger radius. I can se where this could work for hollow grinds where you follow the curve of the blade. On flat grinds Nick showed me he uses a really long tool rest. I liked it Jim
 
I really like it also and recently completed a KMG clone and can really see a use for this fixture. I will have to cobble up something like this real soon.
Thanks for the tip.
It appears to me hollow grinding on this fixture would work much better than a flat shelf as I follow the outline of the blade when hollow grinding.
Chris
 
I went to a knife rest a few years ago. It cut my grinding time in half. I use a 2" piece of square pipe but always meant to make a rod rest. Nice tool add on Padrig.
 
Sorry guys I did not mean that it was a novel idea of mine. I've seen a few pics on the web, like the 2 you mention. I should have said so at first and I apologize for that.

I tried to work with it a little more but I think I will let someone else take it from here. I am just a beginner and just don't have the grinding experience to use or adapt this to different grinding techniques yet.

I will learn free hand first so people can't say I am cheating anymore. ;)

Thanks for all your good words and tips.

Pad
 
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