Patent ID: 6588086
Filing Date: 2003-07-08
Classification: B23C,B23Q,B29C,B29K,B29L,B60N,Y10T

Abstract:
A method of machining a soft plastic foam block to contour opposite sides of said block to enable production of a contoured part, comprising the steps of:clamping said plastic soft foam block to a table of a CNC router with one side thereof facing up; routing a contoured surface into said one side so as to form a cavity recessed into said one side with a perimeter formed by unrouted portions of said one side; filling said cavity with a granular material; covering said one side so as to retain said granular material in said cavity as said soft foam plastic block is unclamped and inverted onto said table with the other side of said soft plastic foam block facing up, and then reclamped; and routing a second contour into said other side of said soft foam plastic block.