Hi, I Recently wrote an electrical inter-provincial, and on it was the question, "what makes a robot twitch" ?
Anyone have an idea? I don't remember the choices , but any answers would be GREATLY appreciated
Thanks!!!
Hi, I Recently wrote an electrical inter-provincial, and on it was the question, "what makes a robot twitch" ?
Anyone have an idea? I don't remember the choices , but any answers would be GREATLY appreciated
Thanks!!!
They shouldn't twitch, generally, these days, although older robots did.
The most common "twitch" is caused by the transition from powered position holding to braking. When a robot stops moving, the motors remain powered up, holding the robot's position against gravity and/or other forces. But when the power to the motors is turned off, there can be a brief gap between when the motors stop holding the robot up and when the motor brakes take up the force. The same thing can happen in reverse when the motors power up and take over from the brakes.
These days, with better brand robots, the handoff between powered position holding and brake holding is much more seamless, almost perfect for some models.
What kind of "Twitch" are you referring to? Skye hit it dead on with the axis drop on motor power on / off... If the twitch is in motion all kinds of things play into it... Payload settings, tooling C/G, actual mechanical condition of the arm...