In Fused Deposition Modeling, what is the primary build style?

In Fused Deposition Modeling (FDM), the primary build style revolves around the process of drawing a layer border and then filling it in. This method is foundational to how FDM printers construct objects layer by layer.

In essence, the printer first outlines the perimeter of each layer, creating a solid shell that defines the shape and boundaries of the object. After this outer perimeter is established, the fill or infill pattern is applied within the boundaries. This layering technique not only provides structural integrity to the printed object but also optimizes material usage and can improve the overall print speed and quality.

The strategy of building layer by layer, starting with the outline and then filling in, enables printers to create complex geometries while ensuring that the object is not only aesthetically pleasing but also mechanically sound.