Volumetric accuracy--where are you at?

[Shelley Liebman Member Find all posts View Profile Close Shelley Liebman]

We recently had our calibration done, and due {I think} to several years of use and the installation of a hoist over the machine last year, we had a bunch of gunk in the bearings.
Our tech did clean some of them, and got us down to a 12.2 micron volumetric calibration (outside of the 8.7 manufacturers spec for our machine). Based on what we do, and tolerances etc., we accepted this value for now.
(We will do a thorough cleaning and re-laser, re-cert later this year).

But my question, is how many of you out there are in the same position, outside of the manufacturers spec for volumetric accuracy of the machine?

Just curious........

[Wes Cisco PC-DMIS Guru Find all posts View Profile Close Wes Cisco]

I'm in.

B&S Xcel 9-15-9

VA .0094 in spec

[layout tech Member Find all posts View Profile Close layout tech]

I'm in! Cal done yesterday.

B & S Xcel 9-15-9 uha

spec. 7.7 cal at 6.8

[rangerboat72 PC-DMIS demi-Guru Find all posts View Profile Close rangerboat72]

We're good...

Cal done a couple of weeks ago and I'm within my 18 micron envelope...

B&S Xcel 15-20-10

[Lee Johnson Senior Member Find all posts View Profile Close Lee Johnson]

Cal done 9/1/05 .0046 volumetric
B&S 7-10-7
Clean area temp controlled to within 1/2 degree F

[John Kugler Ultra Senior Member Find all posts View Profile Close John Kugler]

Done in January - .7 micron

[Jonathan S Senior Member Find all posts View Profile Close Jonathan S]

VA .0004 in January

[Marty Schwab Member Find all posts View Profile Close Marty Schwab]

This is my calibration what do you think? is this good or bad

RUN X POSITION Y POSITION Z POSITION
----------------------------------------------------------
1 -0.0003 0.0016 -0.0006
2 -0.0006 0.0013 -0.001
3 -0.0004 0.0014 -0.0006
4 -0.0004 0.0015 -0.0008
5 -0.0002 0.0011 -0.0008
6 -0.0003 0.0015 -0.0008
7 -0.0002 0.001 -0.0008
8 0 0.0009 -0.0004
9 -0.0003 0.0015 -0.0009
10 -0.0006 0.0015 -0.0007


RANGE 0.0005 0.0007 0.0006


B89 Sphere Repeat Specification = 0.0015 mm

B89 Repeat Test Has PASSED

[Andrew Gardner Senior Member Find all posts View Profile Close Andrew Gardner]

.004mm as of last calibration - 7/05

MicroXcel 7-6-5

[kbotta Ultra Senior Member Find all posts View Profile Close kbotta]

I'm in, 12.5 microns dea gamma 2203
kb

[Randy L. Member Find all posts View Profile Close Randy L.]

B&S Global Status is at .0089 mm on 9/05, spec on machine is .0112 mm.

[John A Junior Member Find all posts View Profile Close John A]

B&S Global Advantage 09-15-08, new in oct 2005

0,003 Volumetric (720 mm lenght, max deviation in calibration report)