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Profile for razoredgeknives

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  • Register Date: 21 Aug 2011
  • Last Visit Date: 24 May 2013
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emo
kenbuzbee wrote:

I've not found that, Josh. Mine will shave fine after the 400s. It's not the smooth shave I get after the 12k, of course, but it's perfectly serviceable. Can you see anything under magnification that would give you a clue? Is this one specific knife or a general trend? How much "stone prep" (soaking, rubbing together etc ) are you doing? How much pressure? I find I drop to almost no pressure for the last dozen strokes at each grit.

Ken


That is very interesting... I must be doing something wrong. I haven't checked it under my USB scope yet, I will have to do that soon to see what is going on at the edge. I haven't really checked into it much on different knives, it was mainly my Para 2 in cts-20cp. I will advise after I can look into it more... I did let the stones soak for 10-15 minutes, and then lapped them on each other creating a slurry, then I sharpened with this slurry. For the final passes I use only the weight of the stone after I clean off the stone surface completely of all swarf and just keep it damp.


jendeindustries wrote:
The reason, IMO (regardless of Verhoeven), is that t he diamonds create a "false positive" due to the rather deep scratches in the edge of the edge, which are deep enough to cause the edge to cut hairs in what is basically a serrated edge, but the overall bevel is still too thick.

You can see the overall "bevel" is thick, but the areas within the serrations where the actual thin blade is exposed would be your deeper scratches from the diamonds. It catches the hairs and cuts them.

When you hit the Choseras and Shaptons, the edge is more homogenous, the scratches are not as deep, the serrations aren't as sharp - and more importantly, the edge of the edge is still too wide to cleanly sever a hair.

Compare the tops of the two pics of the 200 WEPS and the 800 Chosera and the 1K Shapton (which is equivalent to the 800 Chosera):


I understand the theory Tom, and agree to an extent, but I would have to see some direct photos straight on the edge to give more validity to this theory. If it is still cutting hairs then the edge must be still "thin enough" at certain points in either the peaks or valleys of the edge of the edge. So how does it get this thin on a courser grit? I see in your pics where the diamonds seem to leave deeper scratches sure... but this is to be expected
Diamond vs. Choseras ...
emo
Hey guys... I don't understand why I can get a knife edge shaving sharp off of my 200 grit diamond stones but not off of the 800 grit Choseras... Have any of you had this experience? What's the lowest grit you can go with Choseras and still get a shaving sharp edge?
Diamond vs. Choseras ...
emo
Yeah I use that technique on stones, strops, etc. And it works great!
How do YOU handle lo ...
emo
I will do multiple sweeping passes focusing more on the direction of the grind marks each pass will make than how many I do at what part of the blade... Hope that makes sense
How do YOU handle lo ...
emo
So Clay, this is just a though I want to throw out there... see what you guys think... I could be way off base! lol.

Couldn't we do something like just make a single new modded vise? This way you wouldn't have to make a special vise just for low angles, and have special rod arms for low angles, etc? It would look something like this...


There would have to be some work done, but not too much... This is what would have to be done the way I see it... 1. It would have to be made out of a harder metal, preferably hardened steel. This would allow for MUCH greater strength, allowing for a thinner tip and overall vise. 2. You would just leave the base the thickness that it is, but make it solid and drill/tap a hole for a threaded screw - i.e. the same screw that is currently holds the vise in. 3. Drill a hole up through the center of the base and you should be up and running! The limiting factor only then is the actual blue base itself, but by my calculations, you could see 10* AT THE VISE TIP ITSELF easily.




Check out the thinness of my clamp vs the extension... would make a nice difference I would imagine.


As you can see, the existing screws would be small enough to thread nicely into the "new" vise.


I was just wondering if this would be less than having to mess with all of the other stuff... It may be more, but not much and totally worth it. I know I would just replace my existing vise with the new one and leave it that way if so. I will post updates to sharpening w/ the extension in the near future!!
Sneak Peak
emo
Alright, continuing on...

So I also wanted to mount this knife identically into my regular vise to see how low I could go...


Could get down to about 13.9*. Could have gone a little lower, but I need 1-2 different sizes of screws so it doesn't get in the way.




Alright, so on to my final idea! =)
Sneak Peak
emo
Ok so I finally got these pics uploaded! Please excuse the poor photos (had bad lighting)

So I started out with the edge mounted even to the base, with the edge being approximatley .5" off of the top of the vise.


As you can see in the below photo, I do have rod arms that are 2" longer than the stock rods and they worked beautifully! I would suggest 3"-4" though for optimal performance... I noticed that I had a 1/3 degree change if I took the paddle all the way to where the bottom of the stone was hitting the edge on this knife (i.e. the paddle was approximately 30% off of the rods).


For some reason, I was able to go lower on the left side than the right... I am thinking this is because this cheap kitchen knife was FFG and I didn't use anything to keep it centered like I normally do... it did lock up solid once I tweaked down on the vise though. I was able to get 7.65* on the left side before I hit anything with the stone. I believe the limiting factor here was the vise tip itself, due to the thickness of the top of the vise (which it has to be to maintain strength - more on this below)


I was only able to go to 11.65* on the right side before the stone hit the screw... I could have definitely gone lower without this getting in the way!


In the below photo you can see how the screws can definitely get in the way... I would suggest setting the screw heads in the vise if possible, much like on the original vise, and having 1-3 different sizes to come w/ the kit (would be super cheap to add in)
Sneak Peak
emo
Had good results with mine! As stated, fit and finish are superb. I could get down to around 8* on one side but only 13-14* on the other side... I need to play around with more knives, as the one I sharpened was a ffg kitchen knife that I didn't tape.... Felt very secure though!

Anyway, I'll post some pictures hopefully tonight with suggestions.
Sneak Peak
emo
Any update on this? Or was there not enough participating?
Two Big Contests
emo
Very interesting Curtis... Well I got mine in so I'm planning on getting to it tonight! Will post photos and first impressions when done
Sneak Peak
emo
I would also be willing to test one out for you clay... I already have some longer arms so I can sharpen longer blades and see how it holds up
Sneak Peak
emo
Love it! My only concern is that the extension vise will bend at the top... This has been an issue in the past with the regular jaws, but this looks thinner... How does it seem to hold up clay?
Sneak Peak
emo
ApexGS wrote:
For heavy duty EDC use I've always considered 1000 grit diamond to be my personal gold standard, and it seems like a few folks agree with that so I must be on to something

I rarely polish knives out beyond 1000 grit, and most of my stropping on the WEPS is just to clean up and bring out a little extra sharpness. My last 154CM blade was a Hogue, which I kept at 1000 grit straight off the stones and used for everything from cutting through defunct appliance power cords to chopping down saplings around the farm.


I couldn't agree more Tom! That is one of the finest EDC edges around in my opinion...

Tj, in my opinion the perfect answer to your question is found in a micro-bevel (preferably with the 1k diamond). Let us know how it goes!
The perfect combinat ...
emo


Scroll to 12:20 and you will see what I did... took about 30 seconds =)
Spyderco question
emo
Just google "wickededgeusa.com" and I think it will still pop up...

*edit: nevermind, apparently it's fixed. It was like this all the way up until last night if I recall correctly.
WE Hijacked by Syria ...
Category: Off Topic
emo
Mark, this is an outstanding idea! Thanks
Frequently Asked For ...
emo
MarkMassie wrote:
Some folks have stated that they helped this situation by grinding off the plastic edges of the stones to be even with the diamond plates. For me, it was not worth the effort for such a small area.


I had the same problem and this is exactly what I did... Took it on my belt sander for a short bit no problem now
Spyderco question
emo
Video footage done... Just have to get it edited and uploaded now
Two Big Contests
emo
alright, finally sitting down to do this video here shortly... wish me luck!
Two Big Contests
emo
Looks good Curtis!! Thanks for posting! I will have to do mine soon man I really love the edge retention on this blade.... Need to do some edge comparisons too lol
Re-Shaped Bone Colle ...
Category: Knife Photos
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