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E
Common faults
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71
Common faults
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Problem: When the autohome operation is performed or the system
autohome before printing, a certain axis can not back to zero (usually there
will be a strong krkr sound).
Reason Inspection: When returning to zero, check out whether the endstop
is triggered (if the endstop is triggered, the indicator light will be bright) at rst.
If the indicator light is not light, it means that the endstop is not triggered or
the endstop line is not plugged tightly. It is necessary to replug the endstop to
ensure that the endstop works normally.
Solution: Make sure the endstop can be triggered normally and the red light
will be on when it is triggered, otherwise the endstop may be damaged.
7.Automatic reboot
Problem: When the autohome is performed, the device will reboot
automatically after the autohome is completed.
Reason Inspection:Ensure the normal connection of Toolhead line. Observe
the autohome process of the device. If the auto leveling probe on the Toolhead
is not pressed or lifted normally, the system will determine the abnormality and
reboot.
Solution: Remove the Toolhead to check whether the press down and up
of the automatic leveling mechanism of the Toolhead is smooth. If there is
obvious stuck, please check the disassembly tutorial of the Toolhead.
8.Z-offset setting is not successful. The rst layer is so close or
so far to the platform
Problem: When FDM Toolhead is printed, the rst layer is so close or so far to
the printing platform.
Reason Inspection: When the equipment leaves the factory, we will set an
appropriate Z-offset value, but when the equipment hardware is replaced,
remove and assemble, the Z-offset value may change accordingly. Generally,
when FDM prints the rst layer, if the nozzle is too far away from the platform,
the Z-offset value needs to be reduced (for example, from -0.2mm to -0.8mm).
When FDM prints the rst layer, the nozzle is too close to the platform so that
the thread can not be extruded. In this case, the Z-offset value needs to be
increased (for example, from -0.8mm to -0.2mm).
Solution: Adjust Z-offset value appropriately.
9.The Toolhead can not be reset after changing
Problem: After the change toolhead, the X-axis can not return to zero
normally when the device autohome, and the device reboot abnormally or the
X-axis limit switch can not be hit.
Reason Inspection: make sure the connection of toolhead at cable is
normal.Besides, because each toolhead has a certain size deviation in the
production process, it will cause a certain deviation in the return to zero
position of the X-axis. If this situation occurs during the head changing, it
needs to ne-tune the xed position of the x-endstop to adjust and trigger
thehome position of the X-axis.
Solution: Adjust the position of the oval positioning hole of the X endstop to
change the position of the endstop and match the zero position of different
Toolheads.
10.FDM failed to feed/unscrew, plug
Problem: When selecting the function of load lament/unload lament, there
is no lament extruded or lament unload in the nozzle.
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