Rochester, NY, May 18, 2006 - Velmex now offers a comprehensive line of UniSlide® Assemblies with new compact optical encoders for precise positioning or gauging in manufacturing and testing. These screw driven slides employ an encoder to measure absolute travel distance and position. Two encoder resolutions are offered: 1 micron and 5 microns. LED Digital Readout has RS-232C interface, zero reset button and inch/metric toggle switch. The stages are available in four cross sectional widths: 2.5", 4", 6", and 9" for loads up to 300 lbs. Numerous UniSlide Models have travels ranging from 1" to 84". They can also be motor driven. Modular UniSlide Assemblies are easily assembled to make multi-coordinate systems.