Ever wanted to measure and view a Edge Profile? Check this out!
- This topic has 83 replies, 10 voices, and was last updated 04/29/2016 at 10:11 am by
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This is all very interesting, but I’m not sure what we’re trying to prove. I wouldn’t expect to measure bevel angles which are significantly different from what I’m setting up for with my AngleCube and WEPS. And what if it were? What would you do next? Is the intent to show a customer what you’ve done for him/her? Or is the intent to measure the factory angle before sharpening? I’d think most of them aren’t particularly flat bevels. Most I’ve seen are sharpened on a belt and probably polished on a wheel.
I think showing bevels pre-sharpened is probably the most useful. New knives often come with a number of issues: off-centered edges, unequal angles, high buffed angles, etc. Then you have the ‘use and improper sharpening’ issues. It’s hard to convey these issues… this is a case where a picture is definitely worth more than a thousand words. 😉
I did a knife the other day where one side was 20°, the other side was close to 40°, and once I noticed this, you could see how far off-center the edge was… yet both bevels looked ‘equal’. These are the issues that would be good to document, if for no other reason than educating new sharpeners, as well as users on why a knife should occasionally be ‘professionally’ sharpened, (or what the last ‘professional’ did haha.)
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What is the round laser tool used for measuring the angle called and where can I get one or how can I make one?
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While studying the different observations in this post and to keep with my “theme” that everyone should be able to use this tool discussed on this forum for blade bevel angle analysis and measurement, I remembered that I have used a free microscope measuring product called ImageJ found (Here). This advanced software can be downloaded on MAC and Windows PC for Free.
Even with an inexpensive USB Microscope, you can take accurate measurements of your USB photos immediately. I have included in this post a YouTube video (Here) that shows you how to make basic angle and line measurements to include creating an accurate measurement scale.
The only tool you may need in addition to this “free” software is a ruler to set the scale of your image (The smaller the ruler the more accurate). This software isn’t near as intuitive as Dino Lite Capture 2.0 software, however, with a little reading and watching YouTube videos you can learn to use this software just as effectively and the best part is that it’s free.
In all reality this software is much more powerful once one learns how to use it. Universities all over the world use it effectively for general microscopy studies. I am hoping that by providing this additional information more people will be able to try it and join in on the discussion.
Please Let me know what you think!
Eddie Kinlen
M1rror Edge Sharpening Service, LLC
+1(682)777-16221 user thanked author for this post.
Also, I failed to mention in the above post. You don’t need a microscope “AT ALL” to use ImageJ for making accurate measurements. You can use any photograph captured with any camera to measure angles and lengths within a image as long as a known length of a object in the photo can be seen (like a standard ruler). The software can be easily calibrated to be accurate. I have produced the short video to help anyone interested in using this software to get started.
Eddie Kinlen
M1rror Edge Sharpening Service, LLC
+1(682)777-16223 users thanked author for this post.
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