How can improper wall thickness impact the durability of a 3D printed part?

When wall thickness in a 3D printed part is not properly calibrated, it can have a significant impact on the part's durability. If the wall thickness is too thin, the part may lack the structural integrity needed to withstand stress and weight during use, leading to fragility. This fragility makes the part more susceptible to breaking or cracking under load. Conversely, if the wall thickness is excessively thick, it may create internal stresses during the printing process, resulting in internal cracking that compromises the part’s structural integrity even if it appears solid on the outside.

In both cases, the incorrect wall thickness directly affects the performance and longevity of the printed part, underscoring the importance of selecting appropriate dimensions based on the intended application and load conditions. The other provided options do not adequately capture the nuanced relationship between wall thickness and durability.