PPT Slide
The manufacturing takes place in the Rapid Prototyping Lab at Stanford, directed by Prof. Fritz Prinz.
As the name implies, Shape Deposition Manufacturing involves the cycling between depositing material (embedding, pouring, casting, etc.) and removing it (machining).
The part material used here is a grade of Urethane which has adequate layer-bonding, strength and curing properties. The support (sacrificial) materials used were a type of glycerin soap and red wax. The Deposition of materials for this part was done manually.
Figure 5. Shape Deposition Manufacturing. The first picture shows the HAAS CNC 5-axis mill used in the process. The second picture shows one of the Shaping (machining) steps of the part. The third picture shows one of the Deposition steps. Here, urethane is mixed and poured manually.