WARNING
Read the Dremel 3D20 manual and these
instructions before replacing the hot-end
assembly in your Dremel 3D20. Failure to comply with the
warnings and instructions may result in fire, equipment
damage, property damage, or personal injury.
Always unplug Dremel 3D20 from its power before per-
forming any service procedures. Failure to do so may
result in personal injury and equipment damage.
Use 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 3D20 may require the use of special
tools (pulling devices and bearing press). Authorized repair
centers have trained repair technicians and equipment nec-
essary to perform these repairs.
This service document will outline the steps to replace the
hot-end assembly within the extruder, for the 3D20. This
guide should only be used if a replacement part has been
sent to you by Dremel customer service. The replacement
of the hot-end assembly may be needed if a clog occurs that
cannot be fixed with the unclog tool.
Tools Required:
The following list of equipment should be available prior to
the rework.
• 2.5mm Hex wrench (Allen key)
• Scissors
Step 1: Bring the printer to a safe state for
service
1. Cut any filament running into the extruder.
3D20 Hot-end Assembly
Replacement
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'.
CONTINENTAL UNITED STATES
Dremel Service Center
4915 21st Street
Racine, WI 53406
Phone: 1-844-4DRML3D
PROCEDURE
2. Run the load command from the filament screen. Allow
filament to run into the extruder for at least 5 seconds after
the end of the filament enters the extruder intake.
3. Exit the filament loading screen, and allow the printer to
reach a state where the icon reads "cool" on the screen.
4. Turn off and unplug the printer.
CANADA
Giles Tool Agency
47 Granger Ave,
Scarborough, ON
M1K 3K9, Canada
Phone:1-416-287-3000
West Coast Tool
4008 Myrtle Street
Burnaby, B.C. V5C 4G2
Phone: 1-604-873-5394
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