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If you have access to a 3-D printer with two heads you can do dual extrusions. A good example of how to turn an STL file into a dualstrusion merged stl file is with MOST's SunHusky Logo

To make use of this functionality to do the following:

  1. create the first object
  2. import into OpenSCAD
  3. make it a module
  4. create second object in OpenSCAD - e.g. the frame or housing
  5. Difference them by
  6. save the inverted stl
  7. open ReplicatorG, click GCode, click merge .stl for Dualstrusion
  8. set up choices for each one (recommend identical)

Example OpenSCAD script[edit | edit source]

difference(){
cylinder(5,60,60);
sunhusky();
}
module sunhusky(){
import("sunhusky3d.stl");
}