A microprocessor system contains a read-only memory for storing programs or firmware. Each airfoil includes opposite pressure and suction sides and extends in chord between opposite leading and trailing edges. This force-displacement characteristic line is used to determine the lost force that is required in the pressing tool for the plastic deformation of the clamping ring and for overcoming the inner friction of the pressing tool. One or more radio frequency sensors associated with the first container are queried to determine whether the first container contents are ready for audible presentation of the instruction, and in response to determining that the first container contents are not ready for audible presentation of the unpack instruction, a radio-frequency sensor error message is audibly presented. The controller provides a means for controlling the dispensing operation, including a fill rate, based on the desired fill level and the shape of the container.