What is the impact of higher print temperatures in FDM?

Higher print temperatures in Fused Deposition Modeling (FDM) significantly improve the flow of the filament, allowing it to be extruded more smoothly and evenly. This enhanced flow contributes to better layer adhesion, which is essential for creating strong, durable prints. When the filament is heated to optimal temperatures, it reaches a more viscous state, allowing it to fuse effectively with the layers below.

However, while higher temperatures can lead to these advantages, they also introduce some challenges. One common issue that arises is stringing. Stringing occurs when the nozzle oozes material during non-print moves due to the filament being too fluid, resulting in unwanted strands or "strings" between parts of the print. This side effect is a balance that must be managed, often requiring adjustments in temperature and retraction settings to minimize.

In contrast, other effects noted in different options—like increased brittleness and cracking or slower print speeds—are not typically associated with higher print temperatures in a beneficial FDM context. Higher temperatures generally do not result in slower print speeds and decreased quality; instead, they can often enable faster printing under the right conditions. Therefore, while managing print temperatures is crucial for optimal results, the primary impact of elevated temperatures is improved flow and adhesion,