Quote:
Originally Posted by Jon Stratis
That looks pretty awesome.
One question though... will the actuator backdrive? Using the arm in the video as an example, when you put the arm up, can you just turn off the motor off and the arm will stay in position, or do you need to power the motor to some amount to keep it there?
I think I know the answer, but want to make sure as it's not specified in the video or website  |
Generally, we did not see back-drive with the actuators during testing. Technically, because the screw offers greater than 50% efficiency it is not considered self locking and may back-drive especially under high load and high vibration. That said, the additional resistance of the the motor and gear system limits the screw from back-driving.
During our testing the screw did not back-drive under the calculated loads and in many different configurations including the arm in the video.