Extrusion-Based Ceramics Printing with Strictly-Continuous Deposition
Résumé
We propose a method for integrated tool path planning and support structure
generation tailored to the specific constraints of extrusion-based ceramics
printing. Existing path generation methods for thermoplastic materials rely
on transfer moves to navigate between different print paths in a given layer.
However, when printing with clay, these transfer moves can lead to severe
artifacts and failure. Our method eliminates transfer moves altogether by
generating deposition paths that are continuous within and across layers.
Our algorithm is implemented as a sequential top-down pass through the
layer stack. In each layer, we detect points that require support, connect
support points and model paths, and optimize the shape of the resulting
continuous path with respect to length, smoothness, and distance to the
model. For each of these subproblems, we propose dedicated solutions that
take into account the fabrication constraints imposed by printable clay.
We evaluate our method on a set of examples with multiple disconnected
components and challenging support requirements. Comparisons to existing
path generation methods designed for thermoplastic materials show that our
method substantially improves print quality and often makes the difference
between success and failure.
Origine : Fichiers produits par l'(les) auteur(s)
Loading...