LC DCG case studies
LC DCG · Put your knowledge to work in context.
Design and Communication Graphics (DCG) is the Leaving Certificate subject that develops graphical communication, spatial reasoning and computer-aided design skills. It suits students who enjoy precise drawing, visual problem solving and design work, and it is often taken alongside subjects such as Mathematics, Physics, Construction Studies or Engineering. The LC DCG case studies are 5 cases and about 3,406 words.
1Datum dimensioning and section convention on a mounting plate drawing
A machine shop has paused a batch of 40 aluminium mounting plates because the drawing supplied by a transition-year student is ambiguous. The plate is 180 mm × 120 mm × 12 mm, with four Ø11 mm clearance holes, a central Ø40 mm bore and two 8 mm stiffening ribs on the underside.
684 words, about 3 min2True shape and dihedral angle for a triangular canopy panel
A design team is entering a canopy competition. The fabric panel is triangular, fixed to a vertical wall along AB and tensioned out to C.
661 words, about 3 min3Rebuild failure and drawing association in a sensor enclosure model
A transition-year team is preparing a wall-mounted sensor enclosure for small-batch production. The enclosure is 180 mm × 120 mm × 45 mm externally, with 2.4 mm ABS walls, four M3 brass inserts in 8 mm-diameter bosses, a 0.8 mm-deep recessed logo on the front face, and a 1.6 mm snap-fit cantilever on one side.
669 words, about 3 min4Concept choice and joint failure in a flat-pack laptop stand
A student team must design a flat-pack stand for a 15-inch laptop weighing 2.2 kg. The brief requires: cut from 3 mm birch ply on a 600 mm × 400 mm laser bed; assemble without glue or fasteners; support a 10 kg vertical load; fold flat into an A4 envelope (297 mm × 210 mm); and use no more than one 600 × 400 sheet per stand.
682 words, about 3 min5Correcting a carton net for board thickness, bleed and A3 fit
A bakery wants a shelf-ready carton for six shortbread fingers. The internal dimensions must be 160 mm × 60 mm × 25 mm.
710 words, about 4 min