What can be affected by humidity and temperature during FDM printing?

Humidity and temperature play a significant role in the properties of the filament and the overall printing conditions during Fused Deposition Modelling (FDM) printing. Filaments, such as PLA, ABS, and others, can absorb moisture from the air. When filaments absorb humidity, it can lead to issues such as bubbling, inconsistent extrusion, and weakened layer adhesion, which can ultimately compromise the quality of the print. Temperature also affects the viscosity and flow characteristics of the filament during the melting and extrusion processes. An incorrect temperature can lead to under-extrusion or over-extrusion, both of which negatively impact print quality.

On the other hand, while the printer's warranty may cover defects or malfunctions unrelated to external environmental factors, it does not directly relate to the printing process itself. Likewise, although the beauty of the finished product can be influenced by filament behavior, it is primarily a secondary outcome of how humidity and temperature affect filament properties. The printing location and setup could be influenced by environmental factors, but they do not inherently change based on humidity or temperature alone. Therefore, the interplay between humidity, temperature, and filament properties stands out as the most critical aspect affecting FDM printing.