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3DGence DOUBLE P255 | version 09.2018
In order to perform calibration:
1.
Check the power leads and the printer's leads for abrasion wear and defects. Check the cogged belts for defects and
abrasion wear. Confirm that the Z axis breaker (fig. 6) is not damaged, broken or bent and that it is aligned with the Z axis
endstop notch. To do this, use the "
Rise heatbed"
option in the menu and move the heatbed slowly up.
2.
If there is a filament in the hotend, unload it (chapter III, point 4.1), and then cool both hotends down to a temperature
below 50
o
C (
TUNE → Tool 0 temp. / Tool 1 temp. → RESET
).
3.
Gently remove all dirt and material residues from the nozzle of T0 hotend using tweezers and from the heatbed using a
spatula (this does not apply to the first start-up).
4.
From the printer's
MENU
, choose the
HOME ALL option.
ATTENTION
:
observe carefully the movement of all axes. When the Z axis breaker (fig. 37, violet colour) reaches the level of
the Z axis endstop (fig. 37, green colour) and stops, check the distance between T0 nozzle and the heatbed using a feeler gauge.
The distance should be about 0.8 - 1.5 mm. If the distance is larger, the heatbed scanning may be aborted and the "Heatbed
scan aborted" error message may be displayed.
If the distance between the heatbed and T0 nozzle tip is outside the range of 0.8 - 1.5 mm, adjust it manually
:
a)
Move the heatbed maximally backward along Y axis.
b)
Loosen the clamp bolt (fig. 37, blue colour) locking the slide (fig. 37, yellow colour).
c)
Adjust the distance by means of the thumbscrew (fig. 37, red colour). Tighten the thumbscrew to lower the slide and
increase the distance between the nozzle and the heatbed. Unscrew the thumbscrew to rise the slide and bring the nozzle
closer to the heatbed (fig. 37 red-yellow arrow).
d)
Tighten the thumbscrew and check the position of the nozzle above the heatbed using a feeler gauge, after selecting the
"
HOME ALL" command.
ATTENTION:
During manual calibration of the heatbed, exercise particular care to prevent the heatbed from hitting the hotend
nozzle. Otherwise, the ceramic heatbed or hotend may get damaged. The guarantee provided by 3DGence does not cover such
damage.
5.
In the printer's menu, choose Menu → Advanced → Heatbed Scan. At this point, the process of heatbed scanning starts.
6.
Wait until the scanning is completed
–
it will take about 20 minutes. After completed scanning, "HEATBED SCAN
COMPLETED" message appears on the display. The printer's heatbed has been successfully calibrated and the printer is
ready for further work.
Fig. 37 Manual adjustment of the distance between the heatbed and T0 nozzle tip
