In Additive Manufacturing (AM) slicing is used to translate a computer-aided design (CAD) model into the tool paths used by the printer to create a part. There are several applications in additive manufacturing where using multiple materials are advantageous. Using a secondary material that is easier to separate from the primary part material or that is soluble makes supports easier to use in printing. A secondary material can be used to make infill that can still support higher layers and provide structure but is lighter than the primary material that is used as a shell. Large scale machines have traditionally only used a single material during a print due to the difficulty of adding the capability of a second material. Recently hardware has been developed that generates this capability. In this work, the algorithms needed to allow for Large Scale machine to print a second material that could have different properties including different bead width, layer height, viscosity, etc. for both polymers and metals are developed and tested using this new hardware.
- Understand a novel way to plan tool paths for large scale additive manufacturing with multiple materials.
- See how multiple materials improves what large scale additive manufacturing can do.