Self-taring scale system

A self-taring scale system comprising a base for supporting a plurality of goods and a sensor for measuring a weight of the plurality of goods, comprising:

• a taring mechanism that includes a distractor operatively connected to the base and the sensor for moving one of the base and the sensor between a first position wherein the sensor is in contact with a surface and senses the weight of the base and a second position wherein the sensor is out of contact with the surface and does not sense the weight of the base,
• wherein the distractor comprises:
• a plurality of extendable and retractable members;
• and
• a plurality of step motors each operably connected to a corresponding one of the plurality of extendable and retractable members for extending and retracting same;
• a processor operatively connected to the sensor and the taring mechanism, the processor configured to:
• receive a weight of a unit of the plurality of goods,
• tare the sensor via the taring mechanism,
• receive a weight measurement of the plurality of goods from the sensor, and
• determine a count of a number of units based on the received weight measurement of a unit of the plurality of goods, and the weight measurement of the plurality of goods from the sensor, and
• a plurality of pins each engaged with one of the step motors to resist rotation of the step motor and to permit axial movement of the step motor along the plurality of pins.