Cutting force analyser

A cutting force analyser, comprising:

• weighing means adapted to determine the weight of an object and force applied to the object as it is cut by a knife;
• a record of a force threshold for cutting the object with the knife;
• and
• indicating means;
• the analyser formed to use the weighing means to differentiate between the weight of the object and cutting force applied to it by the knife while cutting the object, to compare the cutting force with the force threshold, and to use the indicating means to communicate how the force compares with the threshold, the indicating means arranged to give a human operator real time signals while the knife is cutting, the analyser being such that different signals indicate:
• when the cutting force is below the threshold;
• and
• when the cutting force has at least reached the threshold and further,
• wherein said signals comprise different coloured lights.