week05 AM Definitions

C. Additive Manufacturing – Key Definitions

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1. Additive Manufacturing (AM)

Definition:
A manufacturing process that builds objects layer by layer from digital 3D models, typically using materials such as plastic, resin, or metal.

Source:
- ISO/ASTM 52900:2021 – Additive Manufacturing Vocabulary
- Gibson, I., Rosen, D., & Stucker, B. (2015). Additive Manufacturing Technologies. Springer.

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2. Subtractive Manufacturing

Definition:
A manufacturing process in which material is removed from a solid block using cutting tools (e.g., CNC milling, turning, drilling) to create the desired shape.

Source:
- Groover, M. P. (2020). Fundamentals of Modern Manufacturing. Wiley.

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3. FDM (Fused Deposition Modeling)

Definition:
A 3D printing process where thermoplastic filament is melted and extruded layer by layer to form an object.

Source:
- ISO/ASTM 52900:2021 – Additive Manufacturing Vocabulary
- Chua, C. K., Leong, K. F., & Lim, C. S. (2010). Rapid Prototyping: Principles and Applications.

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4. STL (Stereolithography File)

Definition:
A file format commonly used in 3D printing that represents the surface geometry of a 3D object using triangular mesh data.

Source:
- 3D Systems. (STL File Format Documentation)
- Gibson, I., Rosen, D., & Stucker, B. (2015). Additive Manufacturing Technologies.

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5. Slicing

Definition:
The process of converting a 3D model into machine-readable instructions (G-code) by dividing it into horizontal layers for 3D printing.

Source:
- Lipson, H., & Kurman, M. (2013). Fabricated: The New World of 3D Printing.

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6. Overhang

Definition:
A portion of a 3D printed object that extends outward and is not directly supported by the layer below it.

Source:
- Ultimaker 3D Printing Glossary
- ISO/ASTM 52900:2021

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7. Bridging

Definition:
A 3D printing technique where filament is extruded across a gap without support beneath it.

Source:
- Simplify3D – 3D Printing Technical Guide
- Gibson, I., Rosen, D., & Stucker, B. (2015).

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8. Mesh

Definition:
A collection of vertices, edges, and faces that defines the shape of a 3D object in digital form.

Source:
- Botsch, M. et al. (2010). Polygon Mesh Processing.

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9. Design for Additive Manufacturing (DfAM)

Definition:
A design approach that optimizes parts specifically for additive manufacturing processes, taking advantage of geometric freedom and layer-based fabrication.

Source:
- Gibson, I., Rosen, D., & Stucker, B. (2015).
- ASTM F42 Committee on Additive Manufacturing Technologies

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D. Refernces

• MakerBot Industries – Official Product Page - https://www.makerbot.com/3d-printers/sketch/ *
• MakerBot Industries – Technical Specifications (Datasheet) https://www.makerbot.com/3d-printers/sketch/specifications/
• MakerBot Print – Official Software Page https://www.makerbot.com/3d-printers/software/