In search of accurate measurements

[TomD]

Guys! I apologise for stirring this discussion but we should abandon idea of tape with vernier. I think that we are barking wrong tree.
Read this:

Maslow Mark II - 3D

Tape calliper would have been a better translation, in dutch we say “rolmeter” rolling measurer. Keep in mine that the accuracy of a tape measure is quite low, a class II has almost 2 mm possible fault per meter, so while that calliper gives you good resolution, it doesn’t give you reliable accuracy. 0.05mm resolution with 2mm accuracy doesn’t make sense http://www.pewa.de/DATENBLATT/DBL_CT_BANDMASSERSATZ_DBL_DEUTSCH.pdf if you want to know about precision ask a german

and my respond

Maslow Mark II - 3D

Aaaa… Thank you @Dag83! But it also mean that my calliper modification was a stupid idea. It gives you false sense of acuracy. It reminds me a Kepler Space Telescope blunder - they polished mirror with super accuracy but wrong curvature. This idea is dangerous and should be scrapped asap! Ja, voll herr Sturmbannführer!