Which feature can improve the stability of a print in FDM?

Increasing the infill density in Fused Deposition Modeling (FDM) can significantly improve the stability of a print. The infill density refers to the amount of material used inside the printed object, typically expressed as a percentage. By enhancing the infill density, the internal structure of the object becomes more robust. This added density improves the overall strength and stability of the print, helping to prevent warping and increasing the object's ability to resist stresses during and after printing.

Higher infill density not only provides greater physical support but also contributes to better adhesion between layers, which is crucial for maintaining the integrity of the print. It also reduces the likelihood of print defects such as gaps or weaknesses in stressed areas. Therefore, a higher infill density is an effective strategy to enhance the stability of printed models in FDM processes.