[Shop-talk] Micrometers

[eric at megageek.com]

OK, I have a few of these Calipers and they work great, except that the 
indicators arenbt accurate and they are non-adjustable.

Here is a link to a photo that I put on my website to define the problem 
Ibm having.

<http://www.megageek.com/photo/photoa~1.nsf/a7ffeab012bbfb5b85256eb1007ca7f6/1270fe034ea0feea85257660004f08aa?OpenDocument>

In the picture, the OD measurement of b
Ab
 should be the exact same as the 
ID measurement of b
B.b
  But they are not.  This means that as I measure a 
piston and the cylinder bore, Ibm not getting a good result (the bore is 
coming up SMALLER than the piston diameter.)

These do work great for measurements of the same ID or ID objects however.

So what I need to find is a way to make sure the calipers are b
correctb
 
before I buy them.
Any suggestions?



Moose
b
Be as beneficent as the sun or the sea, but if your rights as a rational 
being are trenched on, die on the first inch of your territory.b
 Ralph 
Waldo Emerson