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If
this
advice
is
not
followed
and
there
is
a
plastic
debris
on
the
nozzle,
then
the
debris
may
touch
the
bed
or
even
push
the
bed
away
from
the
PINDA
probe,
so
the
PINDA
probe
will
not
trigger
properly
and
the
calibration
will
fail.
6.3.7
Mesh
bed
leveling
Mesh
bed
leveling
can
be
found
in
the
Calibration
menu.
It
is
the
same
procedure
which
is
performed
before
every
print.
It’s
also
the
same
procedure
that
happens
in
the
second
round
of
XYZ
calibration.
The
PINDA
probes
9
points
in
a
grid
manner
on
the
sheet
plate
(whether
it’s
powder
coated
or
smooth
PEI
doesn’t
matter)
and
measures
the
distance
to
the
sheet.
These
points
are
interpolated
and
used
to
create
a
virtual
mesh
of
the
bed.
During
printing,
if
the
bed
is
slightly
warped,
the
probe
will
still
precisely
follow
the
surface
according
to
its
measured
mesh.
The
deviation
limit
for
the
compensation
is
+-50μm
(or
0.05
mm).
Pict.
8
-
Visualisation
of
mesh
bed
leveling
6.3.8
Loading
the
filament
into
the
extruder
To
load
filament,
simply
insert
it
into
the
extruder.
Make
sure
that
the
filament
tip
is
nice
and
pointy.
Printer
will
prompt
you
to
select
the
inserted
filament
material,
preheat
the
nozzle
and
finish
the
loading
with
a
small
extrusion.
Alternatively,
if
the
printer
was
preheated
already,
everything
is
fully
automatic.
Filament
can
be
loaded
from
the
LCD
menu,
for
example,
even
if
the
filament
sensor
is
disabled
in
the
settings.
● Press
the
LCD-knob
to
enter
the
main
menu
on
the
LCD.
Rotate
the
button
to
choose
Preheat
option
and
confirm
by
pressing
the
LCD-knob.
Next
you
choose
the
material
you
will
from.
Choose
a
material;
then
confirm
with
the
LCD-knob.
The
nozzle
and
heatbed
will
heat
to
the
requested
temperature.
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