Operating & Maintaining the Connex500/350 3-D Printer
7–34
DOC-13000 Rev. E
14. In
the
final
wizard
screen,
choose
to
either
repeat
the
head
alignment
procedure
or
close
the
wizard.
•
If
the
most
closely
aligned
vertical
lines
for
a
head
were
at
either
extreme—the
first
or
seventh
lines—choose
Yes
to
run
the
head
‐
alignment
wizard
again,
then
click
Next
.
The
transparency
test
will
show
if
the
heads
are
now
properly
aligned,
and—if
not—the
wizard
will
allow
you
to
“fine
tune”
the
alignment.
•
If
the
vertical
lines
for
the
heads
were
not
aligned
at
either
extreme,
choose
No
to
close
the
wizard,
then
click
Next
.
Figure 7-47: Final wizard screen
Calibrating
Print Heads
The
condition
of
the
heads
directly
affects
the
quality
of
printed
models.
To
maintain
optimum
printing,
you
should
routinely
test
the
heads,
and
calibrate
them
to
the
best
working
configuration
possible.
You
do
this
by
running
the
Head
Optimization
wizard.
During
the
optimization
process,
32
samples
are
printed
on
the
build
tray.
After
carefully
weighing
each
of
them,
you
enter
the
weight
in
the
wizard
ʹ
s
data
‐
entry
screen.
The
wizard
uses
this
data
to
optimize
the
heads.
If,
during
the
optimization
process,
the
wizard
determines
that
a
head
is
faulty—or
that
it
is
negatively
affecting
layer
uniformity
with
the
current
head
configuration—the
wizard
instructs
you
to
replace
it.
If
this
happens,
you
can
continue
the
wizard
(to
replace
the
head)
or
abort
the
wizard
(to
replace
the
head
at
another
time).
To test and calibrate the print heads:
1. Prepare—
•
isopropanol
(IPA—isopropyl
alcohol)
or
ethanol
(ethyl
alcohol)
•
disposable
cleaning
gloves
•
an
Objet
‐
supplied
cleaning
cloth
or
equivalent
•
a
mirror
•
the
scale
supplied
by
Objet
for
use
in
the
Weight
Test
Run the Head Optimization Wizard whenever the condition of print heads is
negatively affecting the quality of printed models, or if you suspect that there
is a problem with one or more of the print heads.
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