Prusa Research Original Prusa i3 MK2S 1.75mm, Руководство пользователя

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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.
6.3.5.2 Y axis alignment (kit only)
For autocalibration to work properly, it is extremely important for the Y axis to be
perpendicular to the X axis. This can be easily checked by looking at the printer
from the top and visually aligning the X-axis rods with lines on the heatbed. If the Y
axis is misaligned, you can easily adjust the position of the Y axis inside the frame
by loosening the
​
M10 nuts
​
on the Y axis and securing them at the newly adjusted position.
You can see how in the
​
Assembly Manual 7.PSU/Step 20
​
(Check if everything is correct )
or in P.I.N.D.A. Probe Misaligned topic at
​
help.prusa3d.com
​
.
Pic. 5 - X-axis rods must be visually aligned with lines on the heatbed.
If the Calibrate XYZ gives “
​ XYZ calibration compromised. Front calibration points not
reachable. ​ ” error, you don’t necessarily need to adjust the M10 nuts and position of the axis
in the frame, but you can adjust the belt holder position. ​ Y-belt-holder with a slot allows to
make a 1 mm adjustment to both the front and the back.
​
Loosen the Y belt holder
screws, push the belt holder part towards the Y motor and retighten the screws.
6.3.6 Calibrate Z
Calibrate Z ​ is located in ​ Calibration ​ menu. It should be performed whenever you move the
printer to different location. It saves the heights of all 9 calibration points in non-volatile
memory. Stored information is used every time mesh bed leveling is called during a print.
When the measured values are vastly different to the stored value, print is canceled as it is a
good indicator something is wrong. Calibrate Z is a part of Calibrate XYZ routine so there’s
no need to run it after successful Calibrate XYZ.
It is a good practice to run this procedure every time you travel or printer is shipped as the
geometry might change slightly and cause an error.
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