I'm not sure where this concern for a meniscus at the edge of any flat, be it a way or a large table, is coming from.
Surely any component that is going to make use of the flat can be designed to avoid that part of the surface. It must be constrained from sideways movement by a second surface anyway, so the combination of the two will prevent any edge distortion affecting its use.
Perhaps I'm missing something fundamental, so I'm happy to receive any engineering lessons that I obviously need.
John
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