CHAPTER 6. POLAR3D PRINTER MAINTENANCE
95
sue
): The
should remain at a consistent height
relative to the
tip, even when sliding forward or
back. Check the
z
height with the extruder at the middle
of the build plate; then slide the build plate forward
so
that the extruder is at the edge of the build plate and con-
firm that the
z
height hasn’t changed. If the
z
height
is
changing from middle to edge of build plate, then:
(a) The
arms in the back of the printer
(near the
) may be bent downwards. Push these
arms up gently until the extruder nozzle stays at the
same height across the entire radius of the build plate.
(b) The pads that the build plate mirror rests upon may be
slightly off. This is normally checked at the Polar 3D
factory when the printer is assembled, but something
might
have happened to throw off this alignment after
leaving the factory, so it is worth checking to confirm
that the mirror is still properly aligned.
Calibrating a Polar3D printer’s
z
height and
x
-axis (items
and
) is performed using the printer
” screen. But the “
Calibration
” screen, and the
process overall, differs between
(where the
process is more manual),
vs.
(which
have a more automated calibration feature).
2
The build plate shuttle typically slides freely on its support rods. But if you happen
to have interrupted a print in the middle of a job, so that the stepper motors are still
engaged and the build plate is locked in place, use the “
Manual Printer Controls
”
screen’s “
Unlock Motors
” button, see Figure
, to unlock the stepper motors and free
the build plate to slide.
