Between the grinder and feeder to ensure safety.

确保磨床与送料机之间的安全。

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Since with common calculation method, the calculated value of feeder shaping roller of ultra-accuracy grinder is approximate, it is hard to estimate its calculation error.

超精加工机床辊子装置的计算都具有近似性，很难估算计算误差，讨论了无心超精加工机床加工外凸滚子成形时机床辊子的解析解。

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The ENA uses a round feeder for its multi-level conical grinder (with 5 settings) that avoids this (admittedly minor) issue.

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