This chapter shows how Insight software works and discusses Insight software to prepare tool paths for additive manufacturing. Specify the following characteristics of the modeler and the slice height that is used to build the model: Modeler type, Modeler name, Model material, Model material color, Support material, Slice height, Model tip and Support tip. Model material is the type of material that is used to build the part. Model material color is the type color of the model material. Support material is the type of material that is used to build the disposable supports. Slice height is the interval at which to slice the Standard Tessellation Language model. Model tip is the size of the model-material extrusion tip. Support tip is the size of the support-material extrusion tip.