9)
XYZ calibration compromised. Left front calibration point not reachable.
XYZ calibration compromised. Right front calibration point not reachable.
XYZ calibration compromised. Front calibration points not reachable.
Printer will likely work, but the bed leveling may be compromised and the skew of the
X/Y axes may not be fully corrected. It is recommended to adjust the positions of the
Y threaded rods in the Z frame as in cases 6) to 8).
You can find out how to fix this
in the next chapter
6.3.5.1 Y axis alignment
.
During the mesh bed leveling procedure following errors may be reported on the display.
1)
Bed leveling failed. Sensor disconnected or cable broken. Waiting for reset.
Verify, whether the PINDA probe cable is plugged into the RAMBo board correctly. If
it is the case, the PINDA probe is broken and it needs to be replaced.
2)
Bed leveling failed. Sensor didn’t trigger. Debris on nozzle? Waiting for reset.
This is a safety check to avoid the nozzle to crash into the print bed if the PINDA
sensor stops working or something goes wrong with the printer mechanics (for
example, a pulley slips). This safety check may be triggered as well, if the printer has
been moved to an uneven surface. Before doing anything else, make the Z axis level
by going all the way up and try again.
At the end of the X/Y calibration, the printer measures the reference height above
each of the 9 bed sensor points and stores the reference heights into a nonvolatile
memory. During the normal bed leveling, it is expected that the PINDA probe triggers
not further than 1 mm from the reference value, therefore the nozzle is not allowed to
move more than 1 mm below the reference value during the bed calibration.
If you moved the printer, you may need to rerun the Z calibration to sample new
reference Z height values reflecting the twist and bend of the table surface the printer
is sitting on. If that does not help, please verify, that the PINDA probe is aligned with
the sensor points on the print bed during the bed Z calibration. The alignment shall
be ensured by the automatic X/Y calibration routine. If the PINDA probe is no more
aligned during the Z calibration over time, it is possible, that a pulley is slipping or
something on the machine frame got loose.
3)
Bed leveling failed. Sensor triggered too high. Waiting for reset.
Similar to case 2). This time the PINDA sensor triggered more than 1 mm above the
reference height. Before doing anything else, make the Z axis level by going all the
way up and try again.
Summary of Contents for Original Prusa i3 MK2
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