From reading the technical details, I see I can program, a desired interval of degrees for elbow/shoulder/hand, which I assume means I can reach higher frequencies of movement for lower amplitudes.
My questions:
If a movement of all shoulder can be performed from 0 to 90 degrees at 2 Hz, will a movement of 10 to 15 degrees, will be much higher?
Can each servo act at different speed?
i.e. The hand can operate at frequency of 12 Hz (3 degrees periodic movement), and the all shoulder can act at same time at frequency of 2 Hz?
We spend a lot of time and energy in hardware and software creating smooth motion in our hobby servo based robotic arms. Trying to move them at 2 or 3 hz cycles is likely to just cause the assembly to vibrate uncontrollably. Personally I think you’re probably barking up the wrong tree.
agreed. this is probably not something that can be readily accomplished using hobby servos and inexpensive brackets for structure.
servos are open loop and you have no ability to read their current position, the power level being applied, or directly influence the amount of power applied by the controller.
the brackets are plenty strong for support but under high rates of acceleration and load will introduce a degree of elasticity that will play havoc with the servo’s efforts to drive to a position at high rates of speed.
while you can probably make a single lightly loaded axis move fairly quickly within the limits of the servo speed and torque, making a cascade of two or three axis do this would require very high speed/torque servos and more than likely a strengthening of the brackets and joints.
