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Found 1 result

  1. Hi, this question could be most probably answered by David Lechner. In my EV3 project, I was trying to increase the speed of the robot gripper movements. It is controlled by a medium EV3 motor and set as follows: motorGrip = Motor(Port.B, positive_direction=Direction.COUNTERCLOCKWISE, gears=[1,24]) Increasing the speed value in the statement motor[m].run_target(speed,...) does not help when a certain speed level is reached. From the documentation I understand that this threshold level is set by the statement motor.control.limits()) So I tried this: print (motor['Grip'].control.limits()) motorTestRunTarget ('Grip', doReset=False, waitTime=1000, safetyFactor=1) motor['Grip'].control.limits (35, 67, 100) motorTestRunTarget ('Grip', doReset=False, waitTime=1000, safetyFactor=1) sys.exit () The first line prints these values: (33, 67, 100). The second line is executed well, but the third one where I try to increase (only slightly) the speed limit, rises Error: File "/home/robot/Client/main.py", line 111, in <module> OSError: [Errno 1] EPERM: Is there anything wrong in the way I try to use the control settings? And another question: how the internal speed limit is set? Does it depend on the used motor (medium, large) or on the specified gear rates, is it based on a safety factor? When I tried to calculate the physical speed limit from the known revolution/s (260 for medium motor), I got a value which is larger than that read in the above piece of program.