Operation Manual

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.