Adjustable work piece clamping system

An adjustable clamping system for holding a work piece in a fixed position relative to a work surface, the system including:

• A work surface having a grid of openings, the grid defining two orthagonal directions, one in line with the row of openings, the other in line with the column of openings;
• fence means having a bearing surface for opposing movement of a work piece on a work surface, the fence means including a flat surface against which a work piece may bear, and at least three laterally spaced pockets for receiving the shaft of a pin to removably attach the fence to the work surface, the outer pockets being positioned to attach the fence with its flat surface in line with a row or column of the openings, the center pocket being positioned to, with one of the outer pockets attach the fence with its flat surface generally at a 45 degree angle to the rows and columns of openings in the work surface;
• pin means for removably attaching the fence to the work surface;
• means for releasably clamping work piece against the bearing surface of the fence means comprising first and second clamping members;
• said first clamping member including a spiral outer surface radiating outwardly in a clockwise direction;
• pin means to pivotally attach the first clamping member to the work surface;
• said second clamping member including a spiral outer surface radiating outwardly in a counterclockwise direction;
• and
• pin means to pivotally attach the second clamping member to the work surface, whereby the workpiece may be clamped to a work surface against the fence means by the first and second clamping members by rotating the clamping members in opposite directions to bear against the workpiece.