Inspecting one's balls



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Hi I wanted to talk about inspecting precision balls and cylinders

  1. Can a normal Talyrond measure the sphericity of a sphere or do you need a special dedicated instrument for checking it?
  2. Can you evaluate surface roughness using a contact probe measurement when the surface checked is a sphere? Or are you left with optical methods?

And some off topic

What is an Indi-Ron? Is it a Talyrond equivalent but built in the USA instead of UK?

submitted by /u/Bzdziuchanson
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