Module 2. CAD Software handling - 2D/3D modelling with CAD
Module 2. CAD Software handling - 2D/3D modelling with CAD
Duration: 50 hours
EQF: 4
ECVET: 1,8 C
Activity 1 - Lesson - History of Engineering design, from pencil and paper to CAD to simulations and generative design
Step 1: Present students with an overview of what is 2D and 3D design. Design vs. drafting (drafting is drawing only, design involves calculations, trials and testing). Cloud-based CAD and its benefits.
Step 2: Present students with how to install a particular CAD software (such as Fusion 360) at home. (Students are encouraged to install such software at home).
Step 3: Show students how to learn from a tutorial on the internet. (Eg. search on youtube how to install Fusion 360).
Activity 2 - Practical session using 2D sketching tools to create a 3D model
Step 1: The instructor opens a blank sheet and introduces the students to the basic 2D sketching tools (drawing a line, rectangle, circle, etc.) The sketch is then extruded to create a 3D body.
Step 2: The students then are given enough time to repeat the sequence of operations and draw the same body on their own.
Step 3: The different viewing options are shown to students. (Eg. Pan, zoom, orbit, visual style, snap, grid etc.)
Activity 3 - Practical session using 2D sketching tools to create a 3D model
Activity 2 is repeated with more complex 2D sketching tools (arc, polygon, spline, slot, mirror, pattern, etc.). More complex 3D tools are then introduced in the same manner. (Eg. revolve, sweep, loft, hole). When introducing students to these drawing tools it is important to present real-life products where these tools are needed to draw the model. For example, to draw a cup, the revolve tool is used. To draw a mug, the revolve tool and the sweep tools are used.
Activity 4
Activity 3 is repeated drawing parts requiring other tools eg. fillet, chamfer, shell, draft, scale, join etc. and also construction entities eg. points, axes and planes.
Tools and materials needed:
a PC with CAD software for each student
a classroom equipped with a computer, an audio-visual system (big screen, or
projector)
a whiteboard
Key Learning Outcome(s)
S1 To properly use 3D Modelling software
K3 To describe the main steps for creating a basic 2D and 3D Model for CAD/CAM systems
Assessment methodology: An individual assessment is given where students need to draw some 3D models (with increasing complexity)from a given part drawing (or isometric view) including dimensions.