Synchronous Position Move

[i-Bot]

I am interested if the sync position move results in all the affected servos ending their move together as well as starting together. If so, what parameter determines the overall speed of the move ?

[limor]

Here is the answer from Robobuilder:

The "Synchronized Position Move" makes all the affected wCKs start moving
all together. But it doesn't necessarily mean they end their move together.
This is basically because that the load and displacement of each wCK may be
different. Therefore, users need accordingly to control the torque for each
wCK considering their loads and displacements.

See this article about PID control and how to control the speed of the servo when the external torque vaires: http://en.wikipedia.org/wiki/PID_controller