Dremel DIGILAB 3D45 Manual page 3

D) Check for Clogs in Stepper Motor:
Use proper anti-static precautions
when performing this replacement.
Discharge static electricity before beginning. Work on a
static-free surface.
It is possible for filament to get stuck on the stepper motor,
or to have a buildup of filament on the stepper motor drive
gear (gear used to move filament through the extruder). To
clean up the stepper motor drive gear, it is required to disas-
semble the extruder.
Follow the instructions below to disassembly your extruder
and clean the stepper motor gear.
1. Bring Printer to Safe State for Service.
a. Turn on the printer, and verify that the temperature icon
reads cool (see thermometer icon empty), if it is not cool
(full thermometer), allow adequate time for the nozzle
and bed to cool.
b. Turn off the printer
c. Unplug the printer
2. Remove Top Cover on the Extruder.
a. Cut the filament just before the intake on the top of the
extruder.
Hot Cool
3
b. Remove screw located on the right side of the hole
using the T10 Torx screwdriver. The first picture below
shows the location of the screw, the second picture a
bottom view of the area where the screw is located,
circled in red is the screw that needs to be removed.
c. Unscrew the two screws on the top of the filament guide
bracket using the 2.5mm bit or Hex wrench
d. Remove the top cover.
e. Carefully unplug filament run out switch from the
extruder circuit board, ensuring to pull from the plastic
plug and not the wires; pulling the wires can damage
the connection to the extruder. Please see picture
below.