Rapid Prototyping · SHS3 Manufacturing Engineering

Lesson notes

Learning Objectives

Indicator: 3.2.2.LI.2 - Distinguish between solid-based and liquid-based rapid prototyping technologies.

By the end of the lesson, learners can:

Define solid-based rapid prototyping and list at least three examples of solid-based RP technologies with their basic working principles.
Define liquid-based rapid prototyping and list at least three examples of liquid-based RP technologies with their basic working principles.
Compare and contrast solid-based and liquid-based RP technologies in terms of raw material form, working principle, and typical applications.
Construct a mind map that organises the key differences between solid-based and liquid-based RP technologies.
Classify a given RP technology as either solid-based or liquid-based when presented with a description of its material and process.

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Curriculum details

Strand: Design and Prototyping (Strand 2)
Sub-strand: Rapid Prototyping (2.2)
Content standard: 3.2.2.CS.1 - Demonstrate understanding in rapid prototyping technologies I. 3.2.2.LO.1 Explain rapid prototyping (RP) technologies and use them to build a prototype.
Indicator: 3.2.2.LI.2 - Distinguish between solid-based and liquid-based rapid prototyping technologies.
Suggested placement: Semester 1, Week 19 (Week 19 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 89

Exemplars (from the NaCCA curriculum)

Experiential Learning: Show learners videos of solid-based rapid prototyping technologies such as selective sintering, laminated objective manufacturing, and fused deposition modeling, and liquid-based rapid prototyping technologies such as stereo lithography, solid ground curing, and droplet deposition manufacturing.
Talk for Learning: Learners to discuss the difference between solid-based and liquid-based rapid prototyping based on their basic concepts and techniques. Organise ideas and views using mind maps.
Teaching and Learning Materials:
- Audio-visuals
- Projectors
- Videos on RP technologies
Assessment (3.2.2.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 2 Skills of conceptual understanding.