Which of the following is NOT a characteristic of a successful FDM print?

A successful Fused Deposition Modeling (FDM) print is characterized by several key aspects that contribute to the quality and functionality of the final product. One crucial characteristic is good layer adhesion. This ensures that each layer of filament bonds well with the layer beneath it, leading to a strong, cohesive part.

A smooth surface finish is another important attribute of a successful print. This quality not only enhances the aesthetic appeal of the printed object but also contributes to its overall functionality, especially if the part is intended for mechanical use or aesthetic display.

No stringing is also a desirable characteristic, as stringing occurs when excess filament oozes from the nozzle during travel moves, resulting in unwanted thin threads of plastic on the print. Minimizing stringing helps maintain the cleanliness and precision of the printed part.

Excessive warping, however, is detrimental to print quality, as it can lead to issues such as distorted shapes, poor surface contact, and compromised structural integrity. Warping often causes parts to lift off the print bed, leading to misalignment and failure of the print. Therefore, excessive warping stands out as a characteristic that is NOT associated with a successful FDM print.