Ireland · NCCA Curriculum Specifications
6th Year Design and Communication Graphics.
Design and Communication Graphics (DCG) for 6th Year students focuses on developing advanced visualization, problem-solving, and graphical communication skills. Students engage with complex geometric principles, parametric CAD modeling, and a comprehensive design assignment in preparation for the Leaving Certificate examination.

01Core Applied Geometry
Exploration of advanced plane and descriptive geometry, focusing on the intersection and development of 3D solids.
Students explore the geometric principles of parabolas, ellipses, and hyperbolas. They apply these principles to solve real-world design and architectural problems.
This topic focuses on finding the lines of intersection when two 3D geometric solids intersect. Students use cutting planes and auxiliary views to determine these complex curves.
Students learn to unfold 3D objects into 2D flat patterns, focusing on transition pieces and truncated solids. This is critical for packaging and manufacturing design.

02Communication of Computer Graphics
Advanced utilization of parametric CAD software to model, assemble, and render complex design solutions.
Students utilize parametric CAD software to create complex 3D parts using lofts, sweeps, and advanced surfacing techniques. They learn to capture design intent through smart dimensioning.
This topic covers bringing multiple CAD parts together to form a working assembly. Students apply standard and advanced mates to simulate real-world mechanical movement.
Students learn to apply materials, textures, and lighting to their CAD models to produce photorealistic images. They explore visual communication techniques for presenting design concepts.

03Applied Graphics: Structural Forms
Analysis and graphical representation of complex architectural structures, including hyperbolic paraboloids and geodesic domes.
Students investigate the geometry of doubly ruled surfaces, specifically hyperbolic paraboloids. They draw these structures in plan, elevation, and end view.
This topic explores the geometry behind geodesic domes and complex spatial frameworks. Students analyze the dihedral angles between adjacent structural panels.
Students solve complex roof geometry problems involving intersecting pitched roofs, dormers, and hip rafters. They determine true lengths and dihedral angles for structural timber cutting.

04Applied Graphics: Dynamic Mechanisms
Graphical exploration of moving parts, focusing on cams, linkages, and gear systems.
Students design and draw cam profiles to produce specific follower motions, such as uniform velocity and simple harmonic motion. They analyze displacement diagrams to understand mechanical timing.
This topic focuses on plotting the loci of points on moving mechanical linkages. Students explore real-world applications like windshield wipers and heavy machinery arms.
Students investigate the geometry of involute gear teeth and the principles of power transmission. They draw meshing gears and calculate gear ratios.

05The Student Assignment
Execution of the Leaving Certificate design project, from initial research to final CAD realization and portfolio compilation.
Students begin their final Leaving Certificate design assignment by analyzing the brief and conducting primary research. They use freehand sketching to explore initial design concepts.
Students select their best design concept and develop it using parametric CAD software. They focus on detailed part modeling, assembly, and ergonomic considerations.
In this final topic, students compile their research, sketches, and CAD renders into a cohesive electronic portfolio. They critically evaluate their final design against the original brief.