Gripper does not release/close


I’ve been using the Dobot magician for a few weeks now.
The gripper does not work properly: when I send the ‘release’ command, the gripper usually does not move.
the ‘close’ command works better, but sometimes has the same problem.
The pump/suction cup is activated every time I send a command, but the gripper just does not move.


3-in-1 oil helped mine.


Hi, I am having the same trouble. Can anybody help.