In the feed drive of a point to point open loop CNC drive, a stepper motor rotating at 200 steps/rev drives a table through a gear box and lead screw nut mechanism (pitch = 4 mm, number of starts = 1). The gear $ratio=\bigg {\frac{\text{output rotational speed} }{\text{input rotational speed}}\bigg }$ is given by U = $\frac{1}{4}$. The stepper motor (driven by voltage pulses from a pulse generator) executes 1 step/pulse of the pulse generator. The frequency of the pulse train from the pulse generator is f = 10,000 pulses per minute.

The basic length unit (BLU), i.e. the table movement corresponding to 1 pulse of the pulse generator, is