Repeat Reading Gage - DIYSwede's "Cheap-O-Meter"

[DIYSwede]

Thanks, TM51 - pardon me for not noticing your post earlier.

The Spherical comparator and DIYed Spherometer I did were inspired from:
Spherometer Construction

I started with the comparator, whilst doing the 3 plate grind, needing to check which one was concave/ convex.
It was very easy-to-use and trim to get very fine results (albeit not quantifiable in any units).
The differences/ deviations of the three plates were "really low", but by how much?

Then adding the 0,001 indicator on the frying pan remedied that lack a bit,
giving "measures" though the surface/ DI tip noise was terrible for consistency.

The ROM averaging out the surface noise is fast and reliable for my purposes (as of now, at least).

Cheers

Johan