CStanford":2nnjnfbx said:Agree about the figure 8/circles, etc. "stuff" but it's odd how often this method shows up in old and not so relatively old manuals and articles, like the one in this thread from 1950.
I wonder if we're missing something?
bugbear":2uorvs4n said:It's a nice clear exposition of the basic method and motivation of double bevel,
and how it allows slow cutting fine natural stones to be used effectively.
He's clearly after a very good edge, since his
"modern" solution is 3 stones; india-washita-arkansas.
The other point is that he's talking about a plane blade
having a planing-life of 2 1/2 hours, and having 4 blades, so
he can do a full working day without stopping to sharpen at all.
The small movements instead of full length strokes
is a solution to keeping the honing angle pretty near constant
which is important in double bevel; his two bevels are obviously
quite distinct, since he actually talks of measuring the cutting
bevel (more comonly called a honing bevel) at 1/64"
BugBear
CStanford":1ve2hmef said:bugbear":1ve2hmef said:It's a nice clear exposition of the basic method and motivation of double bevel,
and how it allows slow cutting fine natural stones to be used effectively.
He's clearly after a very good edge, since his
"modern" solution is 3 stones; india-washita-arkansas.
The other point is that he's talking about a plane blade
having a planing-life of 2 1/2 hours, and having 4 blades, so
he can do a full working day without stopping to sharpen at all.
The small movements instead of full length strokes
is a solution to keeping the honing angle pretty near constant
which is important in double bevel; his two bevels are obviously
quite distinct, since he actually talks of measuring the cutting
bevel (more comonly called a honing bevel) at 1/64"
BugBear
Here's my setup, whattya know, India, Washita, Black Ark in that order from left to right:
David C":7bqs072k said:I suppose this hand held, oil stone, cant, explains why I never see truly sharp edges on clients tools.
There was one notable exception. He was professor of orthapaedic medicine at the royal vetinary college.
There is a general tendency not to pay enough attention to the flat side. And fine grit Japanese waterstones are significantly superior to Arkansas stones.
David Charlesworth
bugbear":1f0ihlf3 said:CStanford":1f0ihlf3 said:bugbear":1f0ihlf3 said:It's a nice clear exposition of the basic method and motivation of double bevel,
and how it allows slow cutting fine natural stones to be used effectively.
He's clearly after a very good edge, since his
"modern" solution is 3 stones; india-washita-arkansas.
The other point is that he's talking about a plane blade
having a planing-life of 2 1/2 hours, and having 4 blades, so
he can do a full working day without stopping to sharpen at all.
The small movements instead of full length strokes
is a solution to keeping the honing angle pretty near constant
which is important in double bevel; his two bevels are obviously
quite distinct, since he actually talks of measuring the cutting
bevel (more comonly called a honing bevel) at 1/64"
BugBear
Here's my setup, whattya know, India, Washita, Black Ark in that order from left to right:
So have you measured your secondary/cutting/honing bevel for us? Break out the ruler!
BugBear
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