Rapid Prototyping · SHS2 Engineering

Lesson notes

Learning Objectives

Indicator: 2.3.2.LI.1 - Set up, configure and utilise a 3D printer to produce CAD prototype models.

By the end of the lesson, learners can:

Identify and describe the major components of a 3D printer, including the build plate, extruder, filament spool, and control interface.
Perform the sequential steps to prepare a 3D printer for printing, including levelling the build plate, loading filament, and setting the correct temperature.
Configure slicing software settings such as layer height, infill density, and print speed for a given CAD model.
Operate a 3D printer to produce a simple CAD prototype model (such as a keychain or phone stand) following a print checklist.
Inspect a printed prototype for common defects and suggest simple corrections for future prints.

Sign in with your phone number to read the full note and download the GES plan - free.

Sign in with phone number

Curriculum details

Strand: Systems Design and Prototyping (Strand 3)
Sub-strand: Rapid Prototyping (3.2)
Content standard: 2.3.2.CS.2 - Demonstrate ability to implement CAD models using 3D printers. 2.3.2.LO.1 Navigate the CAD tools and perform basic operations and functions associated with model design. 2.3.2.LO.2 Implement CAD models using 3D printing systems.
Indicator: 2.3.2.LI.1 - Set up, configure and utilise a 3D printer to produce CAD prototype models.
Suggested placement: Semester 2, Week 16 (Week 36 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. 98

Exemplars (from the NaCCA curriculum)

Initiating Talk for Learning: Shows learners how a 3D printer works (using a 3D printer, software, or a digital model) and walks the class through the process of creating simple objects.
Experiential Learning: Have learners design and print their own objects. Give learners a project in which they have to design and print their own objects using 3D modelling software. These could be simple objects like a keychain, the power button of a laptop, a phone housing, etc.
Have learners design and print their own objects and award the best 3 designs.
Collaborative Learning: Work in groups on a design challenge. Groups will compete to design and produce models using the suite of CAD / CAM tools available according to design requirements or constraints given by the facilitator. Each group should assign a specific role(s) to members towards the solution of the challenge. Roles may, for example may, be modelled after typical design and production teams in the industry to give them relevant exposure and develop team and collaborative skills in them.

Assessment (2.3.2.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning; Level 4 Extended critical thinking and reasoning.

Teaching and Learning Resources:
- Computers with CAD Software installed (Sketchup, Solid Works)
- Video Tutorials for Self-Directed Learning
- Textbooks and Design manuals for CAD practice assignments
- Integrated 3D printing machines with CAM functionality.