Surface Plate Calibration

[spanishfly25]

I am in a civilian lab and the last time I calibrated a surface plate was back in the 80's.  I have a customer that is asking for 12 plates to be calibrate. does anyone have a procedure that you can foward to me. either PM me or send me a regular e-mail  gbl25@aol.com
also is you perfom that type of work in the North East, I may just sub contract you. I am aware I need to buy  lasers and mirrows.

[USMCPMEL]

Can you tell me what part of the country your in? That might help narrow down possible places to sub to.

[ck454ss]

What are the size of the plates?  You may only need a repeat-o meter if they are small enough.

[spanishfly25]

I am in NJ, and they have various sizes. I think the bigger one is 32 x 64 inches.

[sdmetrol]

Have you checked Gidep for a procedure?

We utilize a repeat o meter and an autocollimator to verify repeat measurement and overall flatness.

You will also need diamond powder and a lapping plate to return the plate to the specified grade required if found out of tolerance.

There is a learning curve to this procedure and there is math involved so I recommend utilizing an approved qualified vendor in your area.

[spanishfly25]

No I didn't check Gidep, I don't have access to it.
and for sure if the plate is out of tolerances...I am not going to touch it. if anything I just performed a verification.  does anyone does this type of work around New Jersey?