Dremel DigiLab 3D45 User manual

Read the Dremel 3D45 manual and these
instructions before replacing a clogged
heatsink tube in your Dremel 3D45. Failure to comply with the
warnings and instructions may result in fire, equipment damage,
property damage, or personal injury.
Always unplug Dremel 3D45 from its power before performing
any service procedures. Failure to do so may result in personal
injury and equipment damage.
se only Dremel approved materials and components. Use of
object materials, or 3D objects other than Dremel approved object
materials and genuine Dremel components may void warranty.
Repairs on the Dremel 3D45 may require the use of special tools
(pulling devices and bearing press). Authorized repair centers have
trained repair technicians and equipment necessary to perform
these repairs.
For the location of the repair center near you, please call 1-844-
4DRML3D (1-844-437-6533) Monday thru Friday, 8AM to 6PM CST.
Or, look on our web site at www.Dremel3D.com and follow the link
for ‘Support’.
3D45 Extruder Assembly
Replacement
WARNING
!
PRE-SERVICE PREPARATION
CONTINENTAL NITED STATES CANADA
Dremel Service Center
4915 21st Street
Racine, WI 53406
Phone: 1-844-4DRML3D
Giles Tool Agency
47 Granger Ave,
Scarborough, O
M1K 3K9, Canada
Phone:[phone]
West Coast Tool
4008 Myrtle Street
Burnaby, B.C. V5C 4G2
Phone: [phone]
se proper anti-static precautions when
performing this replacement. Discharge
static electricity before beginning. Work on a static-free
surface.
This document will outline the steps necessary to clear a
clog in the heatsink tube assembly caused by the filament
bulging up inside the tube. If the filament becomes clogged,
neither loading nor unloading will be possible. Tube clogging
can occur by either using an old filament that’s kept in the
open for a longer duration or from 3rd party filaments with
lower transition temperatures.
Tools Required:
• Scissors
• 2mm Hex bit or Hex wrench (Allen key)
• 2.5mm Hex bit or Hex wrench (Allen key)
• 3/32 inches Flathead bit or screwdriver
• T10 Torx bit or screwdriver (no longer than 4 inches)
Step 1: Bring Printer to Safe State for Service
a. Turn on the printer, and verify that the temperature icon
reads cool (empty, highlighted green), if it is not cool
(full thermometer, highlighted red) allow adequate time
for the nozzle and bed to cool.
b. Turn off the printer.
c. Unplug the printer.
CA TION
!
Hot Cool

Step 2: Remove Top Cover on the Extruder
a. Cut the filament just before the intake on the top of the
extruder.
b. Remove screw located on the right side 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 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.
Step 3: Removing the Extruder Motor
a. Disconnect the white extruder terminal block from the
extruder connector as shown in the picture below.
Ensure to grab the block and avoid pinching the wires.
b. Unscrew the two motor screws below using the 2.5 mm
Allen key, as shown in the picture below. Please
ensure that the screws once fully unscrewed, should
still be left inserted in the extruder chassis hole.
2
SERVICE

3
c. Pull the extruder motor assembly away from the printer
(vertically) as shown in the picture below.
d. Cut the filament as close to the nozzle tube top as
possible and dispose of that piece of filament.
Step 4: Nozzle Assembly Removal
a. Unscrew the nozzle assembly screw with 2mm Hex
wrench as shown in the picture below, there is an
access pass-through for this screw located just to the
right of the blue level sensor motor. Please ensure that
the screw once fully unscrewed, should still be left
inserted in the hole. The leveling arm may need to be
moved to access the set screw.
b. Unscrew the Torx screws that hold the fan baffle
assembly and pull down the assembly as shown in the
picture below.
c. Unplug the thermocouple connector (white) from the
extruder circuit board as shown in picture below.
d. Use flathead screw driver to disconnect heater wires
from extruder circuit board. Gently pull the wires out of
the green terminal block.
e. Push down nozzle tube and pull from bottom. ( ote:
Ensure that sufficient time has been given for the nozzle
to cool). Grab the block heater as shown in the picture
to pull the nozzle assembly gently. Then, use your
fingers to straighten any bent wires and pull straight
down through the (encircled) cavity to remove the
nozzle assembly as shown below.

Step 5: Insert New Nozzle Assembly
a. Route the heater and the thermocouple wires through
the passage in the chassis as shown in the picture
under Step 4e (see encircled).
b. Bend the white heater wires, insert in the terminal block
and tighten the flathead screws as shown in picture
below. Gently pull the wires to check if the wires are
securely held in place.
c. Plug in the white thermocouple connector in the
extruder circuit board. Refer picture under Step 4d.
d. Push the nozzle assembly in the extruder chassis hole
such that the heater block is in the left hand side as
shown in the picture.
e. Tighten the nozzle assembly screw with 2mm Hex
wrench as shown in the picture under Step 4a.
f. Lineup the air baffle assembly with extruder chassis,
with the hole towards the user (front) as shown in the
picture below.Insert the fan baffle assembly and match
the screw holes with the holes on the chassis. Screw
the 2 Torx screws to tighten the fan baffle assembly.
Refer picture under Step 4b.
Step 6: Replace Extruder Motor
a. Place the extruder motor on the chassis. Extruder motor
screw holes should line up with holes in the chassis.
b. Tighten the two hex screws with 2.5mm Hex wrench.
Refer picture under Step 3b.
c. Plug in the white terminal block on the extruder connec-
tor as shown in picture under Step 3a (encircled).
Step 7: Replace Top Cover
a. Attach the filament runout switch wires of the cover to
the extruder circuit board. Refer picture under Step 2d.
b. Place the new top cover over the extruder.
c. Replace the two 2mm screws onto the cover. Refer to
picture under Step 2c.
Step 8: Test the Machine
• Plug in and turn on the 3D45.
• avigate to “Filament” and follow the on screen instruc-
tions to load filament.
• Build the “Test Print” file on the machine to ensure the
3D45 printer is working correctly.
Congratulations!
You are now ready to build. Build On.
2610038113 05/2018