The operator of the machine simply chooses their machine/cast size from the drop-down box, enters the size of the finished product, and the target finished rack weight. Upon clicking the "Calculate" button or pressing the return key on the keyboard, the operator will be shown three possible values that their counter could be using, whether it is feet, inches, or rotations of the bullblock.
See it in operation [here](https://splitter.taylorcourage.net)