Prusa i3 MK2S KIT - Page 35

Pict.   17:   Distance   of   the   front   calibration   point   from   the   axis   start.   Ideal   value   is   between   2
and   3   mm   but   everything   larger   than   0.5   mm   is   good   enough.
Pict.18   -   Example   in   the   picture   -   moving   the   frame   forward   on   the   Y   axis   (increasing   the   100
mm   distance   from   the   build   manual)   will   increase   the   Y   distance   from   min.
Pressing the button will get you to the 2nd screen. This screen will identify how far you are
from the perfect perpendicularity. It is measuring the skew of your X/Y axis.
Up   to   0.25  °   =   Severe   skew   compensating   for   offset   of   1.1   mm   on   250   mm   length
Up   to   0.12°   =   Slight   skew   compensating   for   offset   of   0.5   mm   on   250   mm   length
Under   0.12°   =   No   need   to   compensate  ,   X/Y   axes   are   perpendicular.   Congratulations!
35