Preparing To Print; Setting Z-Axis Limit Switch Height; Leveling The Print Bed - Eastwood 60381 Assembly And Operating Instructions Manual

PREPARING TO PRINT

SETTING Z-AXIS LIMIT SWITCH HEIGHT

It may be necessary to fine-tune the height of the Z-Axis Limit Switch to get the nozzle
to an appropriate height above the bed before levelling it.
• Start by adjusting the bed levelling screws down (FIG 37) in an even fashion.
Note that the minimum bed height is limited by the Y-Axis stepper motor. Allow
enough clearance for the bed to be pushed completely rearward without scraping
anything on the stepper motor. Having the springs under greater tension makes
for a more stable bed.
• Power on the printer and select Prepare > Auto home. This will return the
printer to the zero position.
• If the nozzle collides with the bed the limit switch must be adjusted up to provide
the nozzle sufficient clearance to fit a sheet of paper under it. Re-perform Auto
home to verify good clearance (FIG 37).
• If the nozzle is significantly higher than the print surface, adjust leveling screws.
If the travel limit of the screws will be exceeded, adjust the limit switch down and
re-level. Re-perform Auto home to verify good clearance.
• Once the Z-Axis Limit Switch is adequately adjusted make sure the fasteners are
tight enough that it will not shift.

LEVELING THE PRINT BED

An unleveled print bed will result in a poor first layer. Before using the printer, the
print bed must be levelled. Once the levelling has been complete, it does not need to
be changed unless a degradation in quality of the first layer is noticed, or something
has changed the level: e.g., changing a nozzle, removing the hot end, or moving the
print bed.
• One of the simplest methods to get a good bed level is utilizing a clean sheet
of printer paper as a feeler gauge. Auto home the printer and slide the piece of
paper underneath the nozzle.
• Slide the piece of paper back and forth, feeling for resistance, as that corner of
the bed is adjusted slowly upward with the leveling wheel. Once the paper starts
to contact the nozzle, stop adjusting (FIG 38).
• Next, in Prepare > Move, adjust the Z-Axis up approximately 1mm so that it
will not collide with the bed clip or surface as it traverses. Adjust the X-Axis to
220mm (maximum).
• Slide the piece of paper back under the nozzle and readjust the Z-Axis back to
0mm. Now repeat the same process of adjustment at this corner.
• Once finished, adjust the Z-Axis up at least 1mm and move the Y-Axis to 220mm
as well. Lower Z-Axis and repeat levelling process. Next, move to the final corner
0mm X-Axis, 220mm Y-Axis and repeat.
• Repeat the process rotating around and levelling every corner until the resistance
on the paper at each corner feels equal. This can take several rotations as fine-
tuning is done.
• The bed is now level and ready to print.
20
FIG. 37 FIG. 37
FIG. 38 FIG. 38
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