On Sat, 16 Aug 2008 19:08:24 -0700, BottleBob
wrote:

snip
My betting buddy was pretty convinced but he wanted to try it
in a
drill chuck (just in case I had rigged the collet to tilt the precise
amount the get my reading), we put the shim on one of the three chuck
jaws, inserted the edge finder, tightened it, and went back to the
machine. To make a long story short it was out .0002 from the original
edge find. He was convinced, and took his loss gracefully. A fine time
was had by one and all. LOL
BTW, I plan to use my windfall profits to buy donuts for the shop
tomorrow morning.
================================================= ==================
Thanks for the insight and some real world experience and numbers
-- much better than opinions.

FWIW -- I have always had the spindle turning [c. 500 rpm] when
using the electronic edge finder. Also very careful sneaking up
to a contact. Light is not very bright though when it makes
contact.


Unka' George [George McDuffee]
-------------------------------------------
He that will not apply new remedies,
must expect new evils:
for Time is the greatest innovator: and
if Time, of course, alter things to the worse,
and wisdom and counsel shall not alter them to the better,
what shall be the end?

Francis Bacon (1561-1626), English philosopher, essayist, statesman.
Essays, "Of Innovations" (1597-1625).