Hand Tools

Subject:
Re: Pictures from the $12 scope *PIC*

Kees
I find it extremely difficult to make good pictures with a microscope. Mine does about 400x and it has a polaroid filter which helps to avoid glare on steel surfaces. Lightning is very important. But at 400x you are starting to get close to the wavelength of light, so it is not unusual to see weird things happening around the edge.

Here is an example, O1 tool steel after 150 meters planing in beech. The wear on the bevel side of the iron is very visible. There is some redish light scattering over the edge. The black area is sharpened on a 8000 Naniwa SS, below that are the 1000 grit scratches from a Sigma stone. I tilted the iron so that the 8000 grit area was very dark, because I wasn't interested in that. I was interested in the wear area. You can see how some stray scratches are still visible, and they don't seem to be starting points for edge damage.

I think the lighter spots on the black area is just dirt in this case.

Messages In This Thread

Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Re: Criteria for deciding when to sharpen
Hey, I'm good!
Re: Hey, I'm good!
Re: Criteria for deciding when to sharpen
Simple experiment
Agree, except....
Re: Agree, except....
Re: Agree, except....
Question
Re: Question
Amen to that statement
Re: Question
What's the downside of oversharpening?
Re: What's the downside of oversharpening?
I find it curious.....
Re: I find it curious.....
disassemble?
Re: disassemble?
Re: I find it curious.....
Re: I find it curious.....
Re: I find it curious.....
Some provocative thoughts there
Re: Some provocative thoughts there
an experiment
Re: an experiment
Re: Some provocative thoughts there
Re: I find it curious.....
Re: I find it curious.....
Testing the edge
Agree. I look instead of test
Re: Agree. I look instead of test
microscope examination *PIC*
Re: microscope examination
Not to the level of Bill's picture..
Re: Not to the level of Bill's picture..
Re: it might be a case... *PIC*
Re: it might be a case...
Pictures from the $12 scope
Re: Pictures from the $12 scope
Re: Pictures from the $12 scope *PIC*
lighting is everything *PIC*
Robt. Sorby..
Re: Robt. Sorby..
Re: Robt. Sorby..
Re: Pictures from the $12 scope
Re: Pictures from the $12 scope
Re: Pictures from the $12 scope
Re: Pictures from the $12 scope
Brand for a quality 10x loupe? *NM*
BelOMO 10x Triplet Loupe
agree *NM*
Re: Agree. I look instead of test
Re: The instructors of beginners...
Maybe they lack curiosity *NM*
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