Paul Womack calculates...

I must admit I did not do the math myself (my brain is too worn out for that...
)
but I get the feeling that it doesn't take into account what happens at the
edges
of the board.  As the plane's nose passes over the end the plane effectively
gets shorter and shorter until it turns into a chisel plane at the very end and
knocks off a chunk of the board, destroying the nice arc.  What happens
at the beginning of the stroke is even worse in that the blade digs in
immediately
to the depth of the set.

I wonder if the oft-repeated technique of shifting pressure on the plane from
toe to heel is not in fact to get the plane to bend just a bit, changing its
geometry,
thus overcoming the problems at the edges.  I can't see that it would help
otherwise.

Paul Pedersen       my real email address : perrons@c...
Montreal (Quebec)

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