Thread: Measuring internal diameters
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23-11-2016 #1
Now that I have my lathe I am looking into tools for accurately measuring internal diameters e.g. to press fit bearings into pockets.
I'm looking for something better than the digital calipers I have (which are not that accurate in general).
I've seen this type used (an analogue internal micrometer) ~£60:
http://www.ebay.co.uk/itm/5-30mm-Moo...-/231227465653
This quotes a resolution of 0.01 mm but no accuracy value. Could be good enough?
The digital versions are pricey ~£190:
http://www.machine-dro.co.uk/5-30mm-...80-series.html
There are telescopic bore gauges, but have never used them and there seems to be a knack to using them. How do people find these? I have an external micrometer so could mic off the gauge assuming the gauges give repeatable results:
Anyone using anything else? thanks
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