Trends in Micro Machining Technologies | Makino
This would mean that to achieve a ±0.00020" (±5 micron) tolerance would require a system that would provide at least 0.000020" (0.5 micron) precision. Feedback resolutions in the 10 50 nanometer range are now available to improve "resolution" accuracy on new machine tools, however this does not necessarily make a machine accurate.
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