BFB-3000 Set Up and Operations Manual
Document No: D100253
62
9.5.3
Fine adjustment to level the nozzles
Nozzles must be level for a reliable print. If one nozzle is lower than the other, it may
damage the print.
To evaluate if the nozzles are level:
Make sure the bed is flat (see “Bed flatness", page 48)
Check the bed is level (page 21)
Check the hot-end nozzles are clean from plastic debris (page 20). It is common to
mistake dirty nozzles as not being level – especially if the polymer in the extruder is
transparent.
Using “Manual move” (page 18) drive the bed up to the nozzles.
If the nozzles are not level with respect to the
flat
and
level bed
, proceed as follows:
The remainder of this procedure will level the nozzles by sanding the
tips down. This is a permanent change - ensure that it is necessary by
thoroughly checking all the preceding steps before continuing, as the
process cannot be reversed.
Make sure that the nozzle has plastic loaded into the tip. This reduces the burring on
the inside surface of the orifice.
Wind the flat bed up to the nozzles.
Ensure that the bed is completely flat, otherwise the nozzles will be
permanently set non-level.
Position a sheet of sandpaper in between the bed and the nozzle, with the grit
pointing up at the nozzle.
Move the sandpaper back and forth, flat against the bed, slowly moving the bed up
to grind away the lower nozzle tip.
