The invention relates to a workpiece, a method for machining features on workpiece along curving tool path, replicate matrix and lens formed by using the replicate matrix. The workpiece includes array of feature which is scribed when controlling the angle of rotation of the tool table with respect to the work piece to maintain a substantially constant angle between the tool table and the corresponding relative translational movement between the tool table and the work piece along the curving tool path. The matrix includes a pluralit of features on the surface, wherein at least one is scribed when controlling angle of rotation of the tool table with respect to the replicate matrix to maintain a substantially constant angle between the tool table and the corresponding relative translational movement between the tool table and the replicate matrix along the curving tool path. The method includes controlling a relative translational movement between a tool table and the work piece along the curving tool path and controlling a corresponding angle of rotation of the tool table with respect to the work piece and rotate the tool table to a plurality of positioning coordinates to machine features of array on workpieces.