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Replicator Dual Extrusion Machine



The Replicator is a 3D printer that was by the MakerBot® Industries. Although it was originally an FDM 3D printer with two printing heads, the current machine has been configured with a single extruder to simplify printing. It has a large heated build platform to enable builds using ABS.

Our Replicator 1 has been extensively upgraded and modified, with aluminum arms and runs the SailFish 7.7 firmware for superior print quality and speed.

The Replicator is owned by ATX Hackerspace and was rebuilt on 05/23/2019 by Martin Bogomolni.


  • PLA Plastic
  • ABS Plastic

Filament diameter

  • 1.75 mm

Print Quality

  • High (0.120 mm)
  • Draft (0.240 mm)
  • Rough (0.320 mm)

Build envelope

  • 225 x 145 x 150 mm | 8.9 x 5.7 x 5.9 in

Layer thickness

  • Choose 0.20-0.32 mm with stock nozzle

Stock nozzle diameter

Stock 0.4 mm


40 mm/s - 80 mm/s ( DO NOT EXCEED 80mm/s )


X/Y acceleration, up to 2000 mm/s^2 ( 1500 recommended ) Z acceleration, up to 200 mm/s^2

Extruder Temperature

Maximum 230C - Higher will damage the hotend

Heated Build Platform

90C Maximum ( older heated build plate )

Positioning precision

  • 2.5 micron on Z axis
  • 11.micron on XY axis

Replicator Settings

To use the Replicator, you will need software to slice and save an .x3g file to an SD card. Please use one of the following two software packages:

[Simplify 3D] is $150, and has "plug and play" ready settings to use the Replicator and many other printers. "Pro Level" software.

[Cura 4.0] is free and open source software, and you will need to install a plug-in from the Cura Marketplace as well as change the start/end GCODE for the machine.

Replicator CURA Settings


Install the X3GWriter plugin by GhostWriter to automatically output X3G files


Cura Printer Profile

[Cura Draft 0.24mm profile for ABS]


; **** Replicator 1 dual start.gcode ****
M73 P0 ; Enable build progress
G162 X Y F3000 ; Home XY maximum
G161 Z F1200 ; Home Z minimum
G92 Z-5 ; Set Z to -5
G1 Z0 ; Move Z to 0
G161 Z F100 ; Home Z slowly
M132 X Y Z A B ; Recall home offsets
M135 T0 ; Load right extruder offsets
G1 X-120 Y-70 Z30 F9000 ; Move to wait position off table
M140 S{material_bed_temperature} T0 ; Heat buildplate
M134 T0 ; Stabilize bed temperature
M104 S{material_print_temperature} T0 ; Heat right extruder
M133 T0 ; Stabilize right extruder temperature
G130 X127 Y127 Z40 A127 B127 ; Default stepper Vrefs
G92 A0 B0 ; Zero extruders
G1 X100 Y-70 F9000 ; Move to front right corner of bed
G1 Z0.3 F6000 ; Move down to purge
G1 X-90 Y-70 E24 F2000 ; Extrude a line of filament across the front edge of the bed
G1 X-100 Y-70 F180 ; Wait for ooze
G1 X-110 Y-70 F5000 ; Fast wipe
G1 Z0.5 F100 ; Lift
M73 P1 ;@body (notify GPX body has started)
; **** end of start.gcode ****


; **** Replicator 1 dual end.gcode ****
M73 P100 ; end build progress
G1 Z150 F1000 ; send Z axis to bottom of machine
M140 S0 T0 ; cool down HBP
M104 S0 T0 ; cool down right extruder
M104 S0 T1 ; cool down left extruder
M127 ; stop blower fan
G162 X Y F3000 ; home XY maximum
M18 ; disable stepper
; **** end of end.gcode ****