Even with a model in-hand, it is not always easy to transfer design insight from the real-world back to a CAD model on the computer. On-the- Fly Print produces low-fidelity models incrementally, but relies on an on-screen modeling process.
For example, the D-Coil process mirrors the hands-on approach of clay-coiling, but forces the designer to support the entire construction process.
Each system has a different set of trade-offs. On-the-Fly Print combines CAD digital modeling with incremental low-fidelity physical rendering, while ReForm combines hand modeling with digital carving of clay to create a 3D model. D-Coil allows the user to create a 3D digital model by directly handcrafting its physical counterpart. For example, Constructables proposes a step-by-step laser cutting system to design 3D assemblies from 2D physical cutouts. This concept has been developed with several approaches. Interactive fabrication entails a hands-on approach during the 3D modeling process to offer a reflective design experience. Digital model is overlaid onto the physical model. The designer creates a digital spout while the robot prints the teapot body. We conclude by presenting the strengths and limitations of our current design.įigure 1: a) RoMA overview. RoMA lets users integrate real-world constraints into a design rapidly, allowing them to create well-proportioned tangible artifacts or to extend existing objects.
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RoMA’s proxemics-inspired handshake mechanism between the designer and the 3D printing robotic arm allows the designer to quickly interrupt printing to access a printed area or to indicate that the robot can take full control of the model to finish printing. The partially printed physical model then serves as a tangible reference for the designer as she adds new elements to her design. As a designer creates a new model using RoMA AR CAD editor, features are constructed concurrently by a 3D printing robotic arm sharing the same design volume. We present the Robotic Modeling Assistant (RoMA), an interactive fabrication system providing a fast, precise, hands-on and in-situ modeling experience. Interactive Fabrication with Augmented Reality and a Robotic 3D Printer.