Coarse and Fine Grinding/Polishing Machine

A grinding/polishing machine, comprising:

• a machine body having a. base support, a platform mounted on said base support adapted to hold a workpiece, and a column extending from said base support along a Z-axis direction;
• a first grinding unit having a first grinding wheel and mounted slidably on said column to move said first grinding wheel toward or away from said platform along said Z-axis direction;
• and
• a second grinding unit having a second grinding wheel, mounted on said first grinding unit for concomitant movement with said first grinding unit, and slidable relative to said first grinding unit to move said second grinding wheel along a Y-axis direction;
• said first and second grinding wheels having different levels of coarseness/fineness;
• said first and second grinding wheels having respective axes of rotation that extend in said Y-direction;
• said second grinding wheel being movable between a grinding position in which said second grinding wheel is situated between said first grinding wheel and said platform, and a non-grinding position in which said second grinding wheel moves away from said first grinding wheel and said platform.