15
d) Connection of the electrical lines
Place the cables of the heating mat to the main PCB as illustrated.
The cable must be placed behind the left guide rail when viewed from
the front.
Thread it through the intended opening in the main PCB.
If you have only purchased the heated printing bed, but not
the housing, attach it to the PCB holder (after connecting
the cable to the PCB) with an adhesive base and a cable
tie.
Connect the two open lines of the heating to connection "
D8
" of the
main PCB.
The polarity is irrelevant for this.
Connect the plug for the temperature sensor to connection "
T1
".
The
polarity does not matter for this either.
Fasten the cable with a cable tie.
For this, also observe the next figure, the adjusted connection plan of
the main PCB.
The heating and sensor are illustrated green here for
better overview.
Limit switch Z (02)
Limit switch X (01)
Limit switch Y (05)
Temp. Extruder (04)
LCD EXP1
Motor Ext. 0 (08)
(upper pin = brown)
Trimmer motor current Ext.
Trimmer motor current X
Trimmer motor current Y
Trimmer motor current Z
Motor X (05)
(upper pin = white)
Motor Z (07)
(upper pin = brown)
Motor Y (06)
(upper pin = brown)
Reset
LCD EXP2
Heating Extruder (03)
+
Fan (01)
+
Power supply
12 V/DC, 5 A (09)
C1
220 µF, 35 V
Temp. Printplate
Heating Printplate
