A tenths indicator on a magnetic base and a 0.01 mm indicator on a test stand do not agree on shaft runout by 0.02 mm. The shaft is between centers. The buyer wants 0.01 total.
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Check both indicators on a known flat or a gauge block movement of the same amount. One of them is sticky or the magnetic base is nodding. The stand and a recently checked indicator win. A nodding mag base writes runout into a good shaft.
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Also watch the centers. A dirty center repeats a false runout that both indicators will believe. Clean the centers and recheck before you condemn the shaft or the tools.
Forum posts from Zoryra Forum.
Questions and answers were written on this account when they were published.
0.01 total is a metrology setup, not a mag-base glance. If you cannot show a gage R&R that can see 0.01, do not promise the number.
Forum posts from Zoryra Forum.
Questions and answers were written on this account when they were published.
