FLASHFORGE 3D PRINTER inventor Quick Start Manual page 10

How to level the build plate
(1) Tighten the three leveling knobs under the build platform until you cannot tighten them any more.
(2) Select the PlateLeveling.x3g on the control panel, and press [OK] to start leveling.
Then press [OK] for page-turning to read the leveling instructions.
(3) The build plate and the nozzle start moving, once they suspend, you need to adjust the corresponding knob under the right nozzle.
(4) As you adjust the knob, make sure the leveling card just slides between the nozzle and build plate. You should feel some friction on the
card but still be able to pass the card between the nozzle and build plate. (If the card can slide easily, you should rotate the knob
clockwise to decrease the distance. On the contrary, you should rotate the knob anticlockwise to increase the distance.)
(5) When you finish leveling the first point, you should press [OK] to level the next point.
(6) After adjusting the three knobs and making a check when the nozzle is at the center of the plate, you finish the build plate leveling,
press the left arrow to return to the main page.
Right Nozzle
The distance should be that between the right nozzle
and build plate.