Surface plate grades

[Redmech]

I appreciate the help in this thread, the rest of it well.....never mind

 

[Wreck™Wreck]

Glad you came to your senses and gave up.

I tried stacking surface plates without success, the stack became to tall for ease of use. Tried using 4 random support positions underneath one but this caused errors, finally settled on leaving them in the shipping crate which the manufacturer obviously knows something about, this worked best and had the least error yet still not perfect. In recent years I simply take my parts to the surface plate factory and measure them there before the inaccuracy begins.

They hate me