What is the significance of the term “overhang” in 3D printing?

The term “overhang” in 3D printing refers specifically to a part of a model that extends beyond the edge of the layer being printed beneath it. This characteristic is significant because overhangs can present challenges for the printing process. If an overhang is too steep or extends too far without support, the material being extruded may not have a surface to adhere to, leading to defects such as sagging or drooping during the printing process.

Understanding overhangs is essential for designing 3D printed parts effectively, as it impacts decisions about necessary support structures to ensure print quality and integrity. When preparing a model for printing, designers must consider the angles and extents of overhangs to optimize the printing process and minimize issues related to unsupported sections.