Thread: Jnat edge- am I even close?

Originally Posted by Sdm84

Hi all-

I experimented with my Okudo asagi today trying to just see what I could do. I used a DN to raise a slurry and then did circles in sets of 20 to set the bevel. Bevel passed the cherry tomato test all along the blade. Then did slurry passes diluting the slurry until I was blade weight only with plain water. Did not count strokes, just went by intuition here is the result:



OK- let me have it it's the only way I will learn

Lol! You got it I did use tape and finish with x strokes. This is the bevel at 250x and 640x480 resolution

How much travel are you getting from your x strokes from the time you start till the time you finish? Up and down travel not across the stone. Like if you start and your toe is at the top of the stone, how far did it travel down at the end of the stroke.

Originally Posted by Aerdvaark

How much travel are you getting from your x strokes from the time you start till the time you finish? Up and down travel not across the stone. Like if you start and your toe is at the top of the stone, how far did it travel down at the end of the stroke.

Well- about 1/4 of the blade. Honestly I really don't have to do an x stroke the stone (got it from you) is plenty wide. I am used to doing x strokes on my synthetics so just felt natural (no pun intended) lol

Oh ok, that explains why they don't look like x strokes then. Although I believe x strokes are required because they remove the burr while your sharpening. I just bought an Accu-scope 3035 with a 10mp Amscope camera and would love to examine that edge. I'm logging all kinds of information right now on it.

Originally Posted by Aerdvaark

Oh ok, that explains why they don't look like x strokes then. Although I believe x strokes are required because they remove the burr while your sharpening. I just bought an Accu-scope 3035 with a 10mp Amscope camera and would love to examine that edge. I'm logging all kinds of information right now on it.

Wow!! I jUst looked that up what an amazing piece of equipment! I can only imagine what you can see with that!

Originally Posted by Sdm84

Wow!! I jUst looked that up what an amazing piece of equipment! I can only imagine what you can see with that!

It is very very nice. I only paid $200 for it used and it was missing the stage, so I put(epoxied) a $34 Nikon stage on it, and another 200 for the camera. So I've got less than 500 into it and get a whopping 2.2 fps.

Originally Posted by Sdm84

This is the bevel at 250x and 640x480 resolution

How wide is the bevel? That doesn't look anywhere close to 250X.

Originally Posted by bluesman7

How wide is the bevel? That doesn't look anywhere close to 250X.

It is a cheap $30 scope from Amazon so I am just going by what they had in the ad. I really don't know how to determine the actual magnification.

There are two focus points the other is supposedly 60x but it is not really helpful to me.

What are your thoughts?

Originally Posted by Sdm84

It is a cheap $30 scope from Amazon so I am just going by what they had in the ad. I really don't know how to determine the actual magnification.

There are two focus points the other is supposedly 60x but it is not really helpful to me.

What are your thoughts?

Well, aerdvaark's photo is 100X and that looks like what I see with my 100X scope. If the bevel is .5 MM it should look like 50 MM at 100X.

I was going to mention that earlier but I forgot. My scope is at about 240x and even a small bevel pretty much fills half of the whole screen. You can check your actual magnification by taking an image of something of known size or distance like the graduations on a ruler (1/64" or 0.5mm is probably a good graduation to use, depending on if you have metric or inch available).

After taking the image, blow it up to fullscreen on your monitor then measure the distance between graduations on your screen with a ruler. Divide the screen measurement by the actual measurement to get your actual magnification.