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MultiServos cannot only work in traditional cars, but with all kinds of vehicles, trains, fans, propellers, cable cars, lifts and even robots. Though all these objects move we have to differentiate: fans or propellers rotate around a fixed axis or hub. When these objects move, they're stationary and do not change position. Vehicles, lifts or cable cars move in another way – we can call this motion “driving”. Driving objects move along a certain path and will finally reach a new position. RealFlow'sMultiServo system provides four individual nodes to describe these different types of motion.
For linear motions, forces are the most important influence and in RealFlow, forces are introduced by daemons. Gravity is the best known force and creates a linear acceleration along the daemon's orientation. You can create curvy motion with multiple forces or when the forces change direction, but these paths are nothing more than the summation of several linear forces. Of course, creating curved motion for objects with constant velocity by only using force daemons is nearly impossible.
With MultiServos we have to introduce another term, because there, we do not only speak of linear motion, but also of rotation. In this case we are talking about the torque. In a graphic sense, the torque is the “force” in the rotational motion. Just take a look at a jam jar where the cap is totally locked: here you need a very high torque to open the glass. Another example are cars with identical engine performance, but different torques: the vehicle with a high torque will accelerate much faster than the one with a low torque. Different engines also have different torques: when you compare vehicles you will see that cars with traditional Otto engines have a lower torque than Diesels; electric motors have the highest torques. The torque is measured in Newton meter [Nm].
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