Which factor is influenced by print orientation during FDM printing?

Print orientation plays a crucial role in Fused Deposition Modelling (FDM) because it directly affects how layers are deposited and how the final printed part behaves under various conditions. The chosen orientation determines the layer direction, which in turn influences the strength and mechanical properties of the printed object.

When the print orientation is altered, the arrangement of the layers affects how stresses are distributed throughout the part during use. For instance, if a part is oriented so that the layers are aligned with the expected load direction, it can enhance the part's strength, making it more resilient to bending or fracturing. Conversely, if the orientation is poorly chosen, the layers may not provide adequate support against the stresses the part is designed to endure, leading to weaknesses along the layer lines.

Other factors listed, such as the status of the machine, color blending of materials, or the type of filament used, do not fundamentally change the way stress is handled in the printed model. Hence, understanding the impact of print orientation is essential for optimizing the mechanical performance of FDM printed parts.