6.3.3
Increasing
the
adhesion
In
some
special
occasions,
like
a
tall
object
with
a
very
small
contact
area
with
the
surface,
you
might
need
to
increase
the
adhesion.
Fortunately,
PEI
is
a
very
chemically
resistant
polymer
and
you
can
temporarily
apply
other
adhesion
solutions
without
damaging
it.
This
also
applies
to
materials
which
would
not
stick
to
PEI
otherwise,
like
Nylon
etc.
Before
applying
anything
to
the
bed,
consider
using
Brim
option
in
Slic3r
or
PrusaControl
which
increases
the
surface
area
of
the
first
layer.
For
Nylon
blends
a
simple
glue
stick
does
the
trick.
Glue
can
later
be
easily
removed
by
window
cleaner
or
dish
soap
water.
For
ABS
prints,
ABS
juice
can
be
used
and
later
cleaned
with
pure
acetone.
Be
very
gentle
when
applying
the
juice
and
do
so
while
the
bed
is
cold.
Prints
will
attach
very
strongly.
Prepared
juice
can
also
be
purchased
in
our
e-shop.
Unfortunately,
UPS
service
does
not
allow
us
to
deliver
any
acetone-based
products
due
to
shipping
constraints.
In
that
case
you
get
only
the
bottle
and
ABS
from
our
e-shop
and
you
have
to
source
the
acetone
locally.
6.3.4
Selftest
(kit
only)
The
purpose
of
the
selftest
routine
is
to
check
most
common
errors
when
assembling
and
connecting
electronics
and
to
help
indicate
any
possible
errors
after
assembly.
You
can
run
the
Selftest
from
Calibration
menu
on
LCD
panel.
This
should
not
be
necessary
on
the
assembled
printers
as
those
are
pretested.
Initiating
this
routine
performs
a
series
of
tests.
The
progress
and
results
of
each
step
are
displayed
on
the
LCD.
In
case
of
errors
found,
the
selftest
is
interrupted
and
the
reason
for
the
error
is
shown
to
guide
users
in
troubleshooting.
The
selftest
is
just
a
diagnostic
tool,
the
printer
will
still
attempt
to
even
after
the
test
fails.
If
you
are
absolutely
certain
that
the
affected
part
is
correct,
you
may
continue
with
the
process.
The
test
consists
of
●
Extruder
and
fan
test
●
Heatbed
and
hotend
proper
wiring
●
XYZ
motors
proper
wiring
and
functionality
●
XY
axis
length
●
XY
belts
tension
●
Loose
belt
pulley
test
16