What are you sharpening today?
- This topic has 126 replies, 18 voices, and was last updated 05/11/2016 at 11:36 am by
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He Geo! Today I’m sharpening a Gerber DMF that was sent in by a customer from San Francisco. He’s giving it as a gift this Christmas and asked for the following:
I’d like to get the basic level for this model which I believe will be enough for the plain edge only, also I want to point out an issue with it which I feel it should be an easy fix.
The point of the knfie is rounded and I don’t feel comfortable with it, having said that I’d like it to be point and sharp too, if you consider that it will not be enough or the best choice going for the basic level and you consider it would need the advanced on please do so and notify me.
And by all means, keep the original angle of the knife too. Thanks!
So this is a new knife, moderately sharp and definitely does have a rounded tip. It’s a coated blade which is going to limit how I can attack establishing a new tip since I’d normally take some metal from the spine, but I don’t want to remove the coating there so I’ll have to do the reshaping all from the edge side of the blade. My plan is to tape up the blade and the folding mechanism and then mount it up in the G3 Pro. Once I’ve found the sweet spot and matched the angle, I’ll flatten the edge toward the tip until it meets the spine at a nice point. Then I’ll start to sharpen the whole thing, ending with the 1000# stones and a few light passes with the 5.0/3.5 strops to finish it off.
-Clay
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Okay, here is a before picture:
Gerber DMF – Before Sharpening
Gerber DMF – After Sharpening
Gerber DMF – After Sharpening
-Clay
I matched the 15 dps bevel that the knife had and I worked it with the 100#-1000# diamonds, then both sets of ceramics and then the 14/14 micron strops. I really liked the edge at that point so I didn’t go to any finer strops.
-Clay
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Unfortunately, I had a major boo-boo. Although I was very diligent about taping the blade (since it was coated and serrated) one errant stroke with the 100# diamonds went right through the tape to find a couple of the teeth on the serrated portion:
All Taped Up
Here’s the major boo-boo.
-Clay
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Not as good as the Master, but not too shabby for an old guy with 10 days experience with this wicked edge system.. just did this tonight Angle @ 13.5 * dps. Final with leather strops and #50K diamond paste
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I sharpened my Delica 4 in ZDP last night and (probably for the first time) really put some effort into the finishing; all the way to 0.1 micron film. I was astounded at how sharp it ended up. I usually use it to unzip envelopes – a practice not really intended to test the edge – but this time it slices them open… silently.
FWIW; 19 dps
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As an experiment, I recently bought an el cheapo straight razor, just so I could try sharpening it on my WEPS. Well, it wasn’t a razor; it’s a knife, with the same knife edge you’d expect from an el cheapo knife company. The edge was about 0.025 thick at the bevels, which were about 20 dps. Good razors are close to foil thickness at the edge. I measured about 5 dps to be the correct angle for normal straight razor stoning on this one. I spent about 7 hours in three different sessions before giving up, as the edge would not take a proper form. As much as I tried to keep the coarse grit stones from the apex, the steel would break out when I got near it. As the bevels were by then about 5-6mm wide, it would take days to remove the broken edge with finer grit stones. Also, to avoid removing the thickness at the spine, I had chosen 5.6 dps, which meant that eventually using normal SR stoning would be impossible.
To make things worse, I suffered a minor catastrophe while stoning with my 400’s. Apparently a piece of diamond grit came loose (or I knocked off a piece of a file from the cheap blade steel) while I was scrubbing and it proceeded to scratch up the face of the stone badly. All for a $7 knife. Curiosity and the cat, eh wot?
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Last night I sharpened my Tadafusa santoku. It’s a Christmas present for my brother-in-law. I finished the knife with my Chosera 10K’s, so it’s got a nice polished edge…
I forgot to take a photograph while it was still in the WEPS, but here’s an older photograph I took of the knife.
Molecule Polishing: my blog about sharpening with the Wicked Edge
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