In nature, differential growth is used to maximize surface area in a small volume. This concept is used here to make one closed polygon that fills the space with a gently curvy random path. The path creation algorithms seeks only to maintain a target distance between paths, which results in a random structure that diminishes the anistropic effects of traditional infill.
differential growth of an infill path

One of the other benefits of this is that, since the infill is a single path, the perimeters can be connected to the infill without stopping extrusion flow. This is particular useful for deposition additive like FFF or DED where stopping the material flow results in stringing or pools. The conventional approach to prevent these issues are special operations like wipes or other non-productive moves, which increases printing time. For more detailed information, please refer to our paper: DOI: 10.1115/DETC2023-110757.

Connect With Us

We’re looking for collaborators and sponsors who want to shape the next generation of additive manufacturing system.