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TOPIC: Ascending Stone Progression at 800x

Re: Ascending Stone Progression at 800x 2 years 1 week ago #4608

  • AnthonyYan
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Hi Clay,

Nice!! :)

Just a couple of questions:
(1) Are these images from your new metallographic microscope?
(2) What is the scale of the images (if you know)?
(3) Are these photos taken as black-and-white?

Looking forward to more of your results. :D

Sincerely,
--Lagrangian
Last Edit: 2 years 1 week ago by AnthonyYan.
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Re: Ascending Stone Progression at 800x 2 years 1 week ago #4610

  • wickededge
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ApexGS wrote:
Interesting info on rounding the edge a little. Would it be advisable for some situations to back off the arms a degree or so if you wanted to maintain really sharp geometry? I'm playing with an old Imperial filet knife as I type this and just finished the 1000 grit diamond stones, so it's strop-ready. I'm curious to know if there would be a benefit to backing it off a little or just stropping normally.

I would guess that at a slightly shallower angle the tiny facet from the new profile would blend in better as well, but I haven't toyed with much on my new kit yet :)

One of the things that I found really interesting is that I still experienced rounding with stropping after lowering the angle by two degrees per side. I'll try the experiment again at 3 degrees lower per side and so on until I find the setting that allows me to just reach the edge without rounding.
--Clay Allison
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Re: Ascending Stone Progression at 800x 2 years 1 week ago #4611

  • wickededge
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Howdy :)

Just a couple of questions:
(1) Are these images from your new metallographic microscope?
These are from the new scope. The 100x objective still isn't working, so I'm limited to 800x.
(2) What is the scale of the images (if you know)?
What do you mean by scale? Are you talking about microns/pixel or something else? The camera is 10 MP.
(3) Are these photos taken as black-and-white?
These are taken in color.

So far, it's a really fun study to do. I'm working on a developing a little jig that will allow me to hold the blade in exactly the same place on the stage so I don't have to do so much fiddling for every picture.
--Clay Allison
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Re: Ascending Stone Progression at 800x 2 years 1 week ago #4615

  • AnthonyYan
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Hi Clay,

By "scale" I just mean a length-scale. For example, what is the length across the width of the image? Or something like a little line in the image with a measure of how long it is (something like 0.01mm, or 10 microns, etc.). Maybe you could take an image of your linear stage micrometer at the same magnification?

I'm kind of curious how big the scratches are.
Sincerely,
--Lagrangian
Last Edit: 2 years 1 week ago by AnthonyYan.
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Re: Ascending Stone Progression at 800x 2 years 1 week ago #4621

  • wickededge
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No problem, I can do this.
AnthonyYan wrote:
Hi Clay,

By "scale" I just mean a length-scale. For example, what is the length across the width of the image? Or something like a little line in the image with a measure of how long it is (something like 0.01mm, or 10 microns, etc.). Maybe you could take an image of your linear stage micrometer at the same magnification?

I'm kind of curious how big the scratches are.
Sincerely,
--Lagrangian
--Clay Allison
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Re: Ascending Stone Progression at 800x 2 years 1 week ago #4641

  • PhilipPasteur
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Clay,
Just curious, what is the problem with the 100X objective? I have no experience with the kind of microscope that you have, but have spent lots of time with various lab microscopes. Usually changing an objective is relatively easy...

Phil
Phil

MAX 2001-2013
Hoping there is that bridge!
I miss you Buddy!
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