Precision tool setting for fabrication of a microstructure array

A method is proposed for setting a new diamond cutting tool when tool replacement is required during the fabrication of a microstructure array on the outer surface of a roll by a fast tool servo with a force sensor. The sectional profiles of a small reference area in the fabricated part by the replaced old tool are detected through scanning the tip of the new tool with a constant contact force controlled by the fast tool servo. The new tool can be set accurately based on the identified position of the tool tip with respect to the reference area.