From: "Bob May" 
To: "atmlist" 
Reply-To: "Bob May" 


Sounds like the remote measuring scale type that used to be the way to do
it.  A 10:1 magnification of the movement of the stage points to a reading
on a machinist's scale or other fairly accurate inch ruler. FWIW, scrap
lumber from almost anywhere is good material for making a tester.  It
usually costs me little more than $10 to make a tester, the largest cost
being the dial indicator at $8 from Harbor Freight. Bob May
http://nav.to/bobmay
bobmay{at}nethere.com
NEW! http://bobmay.astronomy.net

--- BBBS/NT v4.01 Flag-4