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Dual Extrusion

    Information on dual extrusion with ReplicatorG for the MakerBot Replicator (Original).

    Find a Model

    First, you'll need to find a dual extrusion model to print. Go into ReplicatorG's Thingiverse menu and select Dual Extrusion models! It will bring you to every Thing tagged Dualstrusion on MakerBot Thingiverse.

    Merge .stls

    Any dual extrusion model you find is going to be composed of two .stl files, one for each color or material. Make sure you download both. Then go to ReplicatorG's Gcode menu and select Merge .stl for DualExtrusion.

    You'll see three fields: one for each extruder and one to name the merged file. The fields for the two extruders will accept either .stl files or Gcode you've already generated. The merged file will be Gcode, so give it a .gcode file extension.

    When you click Merge two windows will pop up -- one to generate the Gcode for each of your two component parts. These will look a lot like the Generate Gcode window you've used for single extrusion.

    Generate GCode

    Make sure to check Use default start/end Gcode and Use Print-O-Matic.  You'll also want to make sure that Use Raft is unchecked for both items -- rafts currently don't work well with DualStrusion prints. After you're sure that this looks good, click Generate Gcode in both windows.

    ReplicatorG will generate the two different sets of Gcode and then put them together.

    When it's done, you'll find yourself looking at that .gcode file you came up with a name for earlier. Go ahead and print it just like you would any other generated Gcode! It's as easy as that.


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