| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Additively Manufactured Molds for Large Gyroid Structures Cast from Concrete |
| Author(s) |
Joseph Bartolai, Simon W Miller, Michael A Yukish |
| On-Site Speaker (Planned) |
Joseph Bartolai |
| Abstract Scope |
This work presents the design of additively manufactured molds use to cast large gyroid patterns from concrete. Key contributions are the method of segmentation of the continuous gyroid structure into castable subsections that tile the space in 3D via “rods” with hexagonal symmetry, and the design of the separable multi-section molds that accommodate the gyroid’s complex geometry. These mold sections are additively manufactured using Thermoplastic Polyurethane (TPU) so that when combined they form all of the complex features of the gyroid shape. Upwards of 60 segments make up the more complex molds, with the TPU’s flexibility critical to mold release. The TPU has proven surprisingly robust, with over 60 casts from the same sections. The paper presents the design history for the molds, the current final design, and recommendations for expanding to other Equation-Based Lattice shapes. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |