We report on a way to shape surfaces with fluid jet polishing by adjusting the influence function (the shape of the footprint of the nozzle) instead of changing the dwell time of the nozzle on the surface. In that way, the surface is processed homogeneously, and no dip is generated in the center of the workpiece. As a proof of this approach, a λ/10 flat surface has been generated in our laboratory.
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