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Subject:
Re: No tear stained defense needed..

Warren in Lancaster, PA
I attended Graham Blackburn's lecture at WIA when he substituted for Charlesworth. This was in 2011, after Elliott had introduced the Kato material on this forum and people were talking about the closely set cap iron in disparaging terms.

Blackburn lectured on a closely set cap iron. He claimed that the cap iron needed to be the same distance from the edge of the iron iron as the thickness of the shaving. Like a .001 shaving would need a .001 setback. There was no discussion of the geometrical implications. The resulting surface had no tearout, but it was pitiful nonetheless, scuffed and damaged. Worse than 100 grit sand paper or a dull scraper on pine.

Blackburn also insisted that the cap iron had to be sharpened every time the iron was sharpened. A cap iron would have worn out pretty quickly at that rate. I examined his cap iron and it did not seem to have been sharpened 50 times or anything. He certainly did not seem to have much experience or understanding beyond an extremely crude use.

Messages In This Thread

Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
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Redoing the test
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If you're a beginner...
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Re: And a quote....
Re: Radius of cambered blade - some #'s *LINK*
Re: Radius of cambered blade - some #'s
Re: Cap iron setback and shaving thickness
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Re: The other issue...
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Re: Cap iron setback and shaving thickness
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Contrariness
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Kato and Kawai
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Remarkable restraint
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Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Not really lighting it up
Correction
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This seems pointless
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Maguire
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The Virtue
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"Planecraft"
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My apologies
Re: Burr and Hardness
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Re: "Planecraft"
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The big difference
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Re: Correction
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Re: The most likely
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Jupiter Cakes
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Re: YMMV
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No tear stained defense needed..
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Re: No tear stained defense needed..
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Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
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Set-back distance and measurebation
Re: Set-back distance and measurebation
swingley thread
Blackburn
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Andrew Hunter
Japanese planes
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Re: Blackburn
Re: No tear stained defense needed..
Cap iron sharpening
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Re: Worn Through
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Re:cap iron sharpness and maintenance
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Pictures *PIC*
Cap iron sharpness
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Re: Cap iron sharpening *LINK*
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Cut depth, species, and wear
Re: No tear stained defense needed..
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Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Simple concept, easy 'splanation
Re: Cap iron setback and shaving thickness
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Tried this again today
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Double Iron vs. Thick Iron
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Double Iron vs. Thick Iron
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Re: Cap iron setback and shaving thickness
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planing
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Consumables vs skilled labor
Actually, you've fed right into..
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Re: Good Work
Re: planing
Re: Cap iron setback and shaving thickness
I knew *PIC*
Re: I recall
By the way, Mark..
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Re: By the way, Mark..
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