A fluid jet based micromachining device and method include a workpiece, and fluid jets directing synchronized forces at the workpiece so as to converge forces at a dynamic contact zone on the workpiece and provide mechanical support to the workpiece during periods of contact with the fluid jets....http://www.google.co.uk/patents/US7789734?utm_source=gb-gplus-sharePatent US7789734 - Multi-orifice fluid jet to enable efficient, high precision micromachining
