(snip about people who think they can predict the flight path of
a turning gone wild)
: Suppose those might be the folks who cut above center, entering down for
: convex work and keep their toolrest close? If Newton's right, they get an
: opposite from their tool, and the rest takes any ricochet.
The rest doesn't take any riccochet. And if ytou're referring to
"every action has an opposite and equal reaction, once the tool
catches and hits the rest, it stops, and the WOOD receives
the opposing force, not the toolrest.
Which they watch
: from a secure arm's length because they know better then to stand in front
: of poorly-held spinning objects or objects that might be propelled by
: spinning objects.
Sure, those are useful tips for decreasing the likelihood of a catch, and
for decreasing the likelihood of getting hit.
But anyone who thinks that is going to provide complete protection
all the time is ignorant (sometimes willfully so).
To give one data point, I was in the audience at a demo by Chris Stott, a
professional woodturner. He was turning a bowl from green acacia, and
it shattered. A piece hit the wall ten feet behind my head and bounced
back and hit me in the back.
This piece was really sharp. It comes to a point sharp enough to
go right through an eyeball if you got a direct hit. And I was some 15-20
feet away from the lathe, and not inline with what you would call the expected
I keep that 5" fragment of wood right near my lathe as a reminder
to always wear a face shield.
-- Andy Barss