On 18 Apr, 19:27, Wes wrote:
On Apr 18, 2:17 pm, art wrote:

snip

Forget the scribed line - snip.

--

73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)http://www.ifwtech.co.uk/g3sek

What is so aweful about a scribed line that leads you give an
instruction to' forget it' ?
I've never seen a 'spirit level' being used in a tool room for
accuracy nor could I specify from what you said as to why it should be
used from now on instead of conventional means.

That's funny. My dad was a machinist before me and I still have one
of these in the tool chest he left me. (In the original box no less)

http://catalog.starrett.com/catalog/...sp?GroupID=487

It got me wondering about the advisability of buying stuff from the
west coast where the tool room machines are tested every day for
settlement for an final accuracy of plus or minus ten.
By the time they finish that review the day will be over only to start
all over again the next day.Can you imagine using a spirit level to
check for accuracy after milling a surface?
Art