| About this Abstract |
| Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Presentation Title |
A Print-planning Technique Using Edge-weights to Align Toolpaths to Vector Fields |
| Author(s) |
Joseph McKee, Ian Rybak, Roger V Gonzalez, Joshua T Green |
| On-Site Speaker (Planned) |
Joseph McKee |
| Abstract Scope |
Print-planning software can solve many challenges that limit the functionality of additively manufactured parts. Custom slicing software was developed to optimize toolpath alignment with input vector fields. The software converts slices of 3D models into graphs with edge-weights. Print move edge-weights were calculated using the difference in orientation between edges and local vectors while travel moves were assigned edge-weights exceeding the largest print move weight. A Hamiltonian path solver generated toolpaths that align well with the input vector fields by choosing paths that minimized the total weight of selected edges. As a demonstration, a part was printed with fused filament fabrication having extrusions aligned to brush strokes from reference artwork which included custom color assignment realized through use of an active-mixing hotend. Although conventional infill patterns can align well with simple vector fields, this technique provides automated print patterns which can follow both simple and complex vector fields. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |