(1) Check if the size of model is over limitation at Y Axis, or the model is very close to the front side. Turn, rotate, adjustor relocate the model to meet the size limitation of machine.
(2) If the size of model in Y axis is much smaller than limit size, and the distance between 2 edges of model and 2 edges of build-plate in Y axis is reasonable, then we should consider if it is Y limit sensor issue.
Click “Tools” - “Axis” - “Y axis” - “home” (Figure - 1, 2). If homing works normally, the sensor could be mis-triggered during molding, check if there are dirt or debris or else around the Y limit sensor (position of Y limit sensor). Meanwhile, re-plug plug J32 in main board (in middle left of main board).
Figure - 1 tool - axisFigure - 2 Y axis home
(3) If homing is abnormal, and there are no dirt or debris around limit sensors, we need to test if sensor works normally. Click “System” - “Machine” - “More settings” - disable the motor (Figure - 3) in touch screen, thus X & Y axis can be moved manually
Figure 3 - Enable/disable motor
(4) Move the bridge of extruder assemblies (Y axis) to the most front, Y limit sensor should be triggered at this moment, and the green light of sensor should be on (Figure - 4).
move the bridge of extruder assembls (Y axis) away from Y axis front limit sensor, the light of sensor should be off, then input the order “M119” in bottom blank and click “send” ( Figure - 6 ). At this moment, the sensor feedback value "Y_MIN: 1" should be displayed at the position of "1" on the screen. After that, move Y axis to the most front to trigger the front limit sensor, then input order “M119” again, at this moment, the sensor feedback value "Y_MIN: 0" should be displayed at the position of "2" on the screen. If the values are abnormal, please replace the left limit sensor. (Step of replacement).
Figure - 6 feedback of Y axis front limit sensor
(6) If issue persist after replacing Y front limit sensor,