Corneel
Established Member
No idea what happened but the old thread seems to be gone. Anyway, at the end there were two discussion. One of them was, is the capiron effect because the capiron is pushing the shaving back into the wood and thus preventing it tearing further. Or is the capiron effect because it breaks the shaving before it is strong enough to tear further into the wood.
Well. During my experiments I made 0.2mm thick shavings with the capiron around 0.25 mm set back from the edge. These shavings looked very stiff and not much breakage was vissible. But it didn't create tearout, while a setting of about 1mm defenitely caused tearout in the same piece of wood.
I think something happens like in this picture with a capiron that has a steep frontbevel:
When you look at the Kato video http://vimeo.com/41372857 you don't really see breakage of the shaving either. Just a shaving that is being pushed forward. I think that is the clue. As soon as the capiron takes effect the shaving changes into a stiff forward bending thing. With the capiron out of the way the shaving just curls up without any pressure from the capiron.
Well. During my experiments I made 0.2mm thick shavings with the capiron around 0.25 mm set back from the edge. These shavings looked very stiff and not much breakage was vissible. But it didn't create tearout, while a setting of about 1mm defenitely caused tearout in the same piece of wood.
I think something happens like in this picture with a capiron that has a steep frontbevel:
When you look at the Kato video http://vimeo.com/41372857 you don't really see breakage of the shaving either. Just a shaving that is being pushed forward. I think that is the clue. As soon as the capiron takes effect the shaving changes into a stiff forward bending thing. With the capiron out of the way the shaving just curls up without any pressure from the capiron.
