How To Detect or Remove the Micro Burr?

kreisler said:
tl;dr This photo shows how to really detect the microburr. Note two essential aspects:
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this youtuber's flashlight shows exactly what i've been trying to explain in words and photos. better to use the flashlight (or sun rays) this way than wearing the flashlight on one's head (headlamp headlight). good video, could've been me, he stole my show:
 
kreisler said:
this youtuber's flashlight shows exactly what i've been trying to explain in words and photos. better to use the flashlight (or sun rays) this way than wearing the flashlight on one's head (headlamp headlight). good video, could've been me, he stole my show:
Click to expand...

I have never seen anyone do a reverse S pass on sharpening media. Wonder why they do that?
 
Sharp Steel said:
Wonder why they do that?
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Only my opinion. With a advent of youtube people seem to copy the first clip they see. I saw someone doing this ages ago and it seems to have been copied. But that is only my opinion. I never saw it done that way before the proliferation of technology and the internet.
 
cudgee said:
Only my opinion. With a advent of youtube people seem to copy the first clip they see. I saw someone doing this ages ago and it seems to have been copied. But that is only my opinion. I never saw it done that way before the proliferation of technology and the internet.
Click to expand...

Maybe to prevent recurving the blade accidentally?

I don't doubt that there is a purpose to it. Remember reading a tip from someone years ago who was talking about using a hand plane to flatten the edge of a board. They said to imagine planing the surface as convex (lighter force when planing the middle) to prevent scalloping the wood into a concave surface. The natural tendency is to apply more force towards the center of the board.
 
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