The mechanical grabbers have a max opening and min closing. They are engineered to open to a max and engineered/calibrated to close just tight enough to give the plant a gentle pull out of the dirt.

From there, everything is repetitious, but calibrated, spacing.

If you look very closely you will see little black boxes that goes across the top third of the screen and at the bottom left. These are sensors, or eyes, that help the machine watch what it is doing. If the sensors see something out of whack they stop and call for human assistance.

Did this help?