This display unit uses the electronic cam function of the XSEL controller to guide a mechanical pencil lead through the eye of a sewing needle. As you can see, the slave axis is accurately following the movements of the master axis.
As the 0.5mm pencil lead is guided through the eye of the sewing needle, the actuator moves horizontally.
The point of the operation is to align the operation timings of both actuators. Then the electronic cam function is used, the two actuators can be driven by aligning their operation timings.
This new function lets you shorten the cycle times of your system of align the timings of multiple actuators.