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3DGence DOUBLE P255 | version 09.2018
If the material is blocked so strongly that it is impossible to unload it manually and slide it out of the extruder and the filament
sensor, the short bowden tube can be dismounted in order to remove the blockage.
To do this:
1.
If the material is in the hotend, heat the hotend up to the plasticization temperature of the given material and wait for the
hotend to reach the preset temperature:
TUNE → Tool 0/Tool 1
and using +/- key set the temperature.
2.
To loosen the extruder clamp:
c)
loosen the knurled nuts (fig. 39, red colour),
d)
pull the extruder clamp (fig. 39, green colour).
3.
Cut the end of the filament at the filament sensor (fig. 7, point 2, 3).
4.
Dismount the short bowden tube:
a) slide out the C-shaped pipe connector lock in the hotend (fig, 51, step 1),
b) press the pipe connector lock (fig, 51, step 2) and simultaneously, slide the short bowden tube out of the pipe connector
opening (fig, 51, step 3).
5.
Remove the remaining material in the hotend and in the bowden tubes.
6.
Mount the short bowden tube material. Remember to insert it as far as possible (about 2 cm) and put a C-shaped block.
Properly installed short bowden tube will be visible in the hole in the hotend guiding sleeve (fig. 40).
7.
Tighten the knurled nuts (fig. 39, red colour).
8.
Load the material using the
LOAD MODEL MATERIAL/LOAD SUPPORT MATERIAL
option.
Fig. 40 Properly installation of the short bowden tube
ATTENTION:
If the material is fed correctly by the extruder, the bowden tubes have been cleared, but it is not possible to
extrude the material through the hotend, it is recommended to replace the hotend with a new one (chapter VI, point 1).
4.4.
Change of material during printing process
The printer makes it possible to change the material during printing. This option is designed for changing the material when it
is finished or when you want to change the colour of the printed model from a certain height. This option is not recommended
for multiple-material printouts (e.g. when the bottom of the model is made of ABS and the top of PLA). After unloading the
previous material, the printer will store the loading temperature for the new material.
1.
Press the
MATERIALS
key on the touch screen.
2.
Choose the
CHANGE MODEL MATERIAL
option for Tool 0 hotend or CHANGE SUPPORT MATERIAL
option for Tool 1 hotend.
3.
Confirm the start of the material change manager operation by clicking on
CONTINUE
.
4.
The printer will start heating the hotend to the nominal extrusion temperature. A test section of the filament will be
extruded and then, the material will be withdrawn from the extruder.
5.
Slide the end of the material out of the bowden tube manually and remove the spool from the holder.
6.
Cut the new filament end at the angle of 45
o
and place the spool with material on the holder.
7.
Slide the filament end into the input opening of the filament sensor.
