G9 Computing Creative Design & Innovation Revision Checkpoint 1 PDF 2024-2025

Summary

This document is revision material for a Computer-Aided Design (CAD) Checkpoint 1 exam for a grade 9 class. It covers topics like basic constructions, 3D representations, and advanced 3D modeling skills.

Full Transcript

Computing Creative Design and Innovation Grade 9 – Adv./Gen. – Term 1 Revision For Checkpoint 1 (45 marks) Lubna Al Meshaiei -- CCDI teacher -- Um Kolthoom C2,C3 -- Al Ain CCDI – Term 1 – Grade 9 Computing Creative Design and...

Computing Creative Design and Innovation Grade 9 – Adv./Gen. – Term 1 Revision For Checkpoint 1 (45 marks) Lubna Al Meshaiei -- CCDI teacher -- Um Kolthoom C2,C3 -- Al Ain CCDI – Term 1 – Grade 9 Computing Creative Design and Innovation Grade 9 – Adv./Gen. – Term 1 Next week Checkpoint 1 (45 marks) Chapter 1: Graphics for Design Section 1: Basic constructions Section 2: 3D Representations - Orthographic Projection Chapter 2: Principles of Computer-Aided Design and Design Realization Section 2: Advancing 3D modelling skills Lubna Al Meshaiei -- CCDI teacher CCDI – Term 1 – Grade 9 Chapter 1: Graphics for Design Section 1: Basic constructions Technical Graphics VS Comparing Computer-Aided Design (CAD) CCDI – Term 1 – Grade 9 Section 1: Basic constructions Technical Graphics and Comparing Computer-Aided Design (CAD) What is Technical graphics ? What is Computer-aided design? Graphical representation of Graphical representation of an an object on paper. object using computer software. What is the drawing equipment (tools) is used for technical graphics? Pencil Set squares Protractor Compass CCDI – Term 1 – Grade 9 Section 1: Basic constructions Technical Graphics and Comparing Computer-Aided Design (CAD) The uses of drawing equipment : 1. Pencil → to draw different types of lines, Lettering, Freehand sketching. 2. Set squares → to draw vertical and some inclined lines. 3. Protractor → to draw angles 0-180°. 4. Compass → to draw circles and arcs accurately. The terms we use regarding a circle: 1. Circumference: the full distance around a circle 2. Diameter: the distance from one point on a circle through the center to another point on the circle 3. Radius: the distance from the center of the circle out to the circumference 4. Arc: part of the circumference or a section of the circle CCDI – Term 1 – Grade 9 Section 1: Basic constructions Technical Graphics and Comparing Computer-Aided Design (CAD) The terms we use regarding an angle: ▪ Angle: two straight lines meet at a point ▪ Vertex: The point of intersection between these lines ▪ Arms: The lines creating the angle Types of an angle: CCDI – Term 1 – Grade 9 Section 1: Basic constructions Technical Graphics and Comparing Computer-Aided Design (CAD) Some basic constructions that will be very useful to studying technical graphics. Lines meet at 90 Two lines that can degrees (right never meet no matter angles). how far (never touch) Divide a line in To bisect an half (2 equals) angle is to split the angle in half with a bisector line. CCDI – Term 1 – Grade 9 Section 2: 3D Representations - Orthographic Projection What is orthographic projection? Means of representing three-dimensional objects in different two-dimensional views How many views in orthographic projection? A B C Front Side/Right Plan/Top CCDI – Term 1 – Grade 9 Section 2: 3D Representations - Orthographic Projection Drawing objects with hidden lines A B C Front Side Plan CCDI – Term 1 – Grade 9 Section 2: 3D Representations - Orthographic Projection Orthographic projections of curved surfaces Front Side Plan Cylinder Cone CCDI – Term 1 – Grade 9 Section 2: 3D Representations - Orthographic Projection Orthographic projection of geometric solids Prism Side Plan Front CCDI – Term 1 – Grade 9 Chapter 2: Principles of Computer-Aided Design and Design Realization Section 2: Advancing 3D modelling skills CCDI – Term 1 – Grade 9 Section 2: Advancing 3D modelling skills What is meaning of Revolve in CAD? ▪ A revolve is created by revolving a sketch profile or planar face around a selected axis. ▪ You must create a profile sketch and an axis for the profile to be revolved around. Axis Profile CCDI – Term 1 – Grade 9 Section 2: Advancing 3D modelling skills What is meaning of Loft in CAD? ▪ A loft is a transitional profile between two different sketch profiles. ▪ A loft differs from an extrude in that the shape transitions (changes) towards the shape of the second profile as it moves closer to the second profile. 2 Profiles CCDI – Term 1 – Grade 9 Section 2: Advancing 3D modelling skills What is meaning of Sweep in CAD? The sweep feature allows us to sweep a profile sketch along a separate sketch path. This path can be a complicated or curved sketch. Path Profile CCDI – Term 1 – Grade 9 Section 2: Advancing 3D modelling skills Creating a multi-body designs In Fusion 360, every time you create a new feature, it will create a body. The first body will be named body 1, then body 2, and so on. This body is then shown in the browser. CCDI – Term 1 – Grade 9 CCDI – Term 1 – Grade 9

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