SECTION B
DESIGN AND DRAWING
Two sheets of drawing paper, 550 x 375 mm are provided.
Use one of the sheets of drawing paper to answer question 1 and the other sheet to answer question 2.
All dimensions are in millimeters. You should work to the main dimensions but where no dimensions are given, you should use your own discretion.
Marks will be awarded for draughtsmanship.
Answer all the questions.
Design a wall cabinet to the following specifications:
height – 450;
width – 600;
depth – 300;
carcase and door – 18 mm plywood;
back – 6 mm plywood.
(All dimensions in millimeters)
The cabinet has a door, a handle and a lock.
(1) Make two preliminary freehand pictorial sketches each for a different design of the cabinet.
(2) Select one of the sketches in question 1 and indicate the selected sketch with a tick ().
To a scale of 1:5, draw in the Third Angle Orthographic Projection the following views:
(i)the front elevation.
(ii)a sectional end elevation.
Observation
Most of the candidates did not attempt this part and the few that attempted it did not perform well.
Candidates were expected to do the following:
- use pictorial freehand sketch to describe the wall cabinets;
- sketch to meet the given specification;
- draw in isometric;
- dimension appropriately;
- draw the front elevation and sectional end elevation in third angle; orthographic projection.
The solution is stated below:
(A) Preliminary freehand pictorial sketches:
- draw for resemblance;
- draw completely;
- draw to proportion;
- overall dimension properly;
- draw neatly.
(B). (I) Front elevation (F.E.)
- indicate the sketch selected;
- carcase details (top, bottom, sides);
- show door details (lock, handle, hinges);
- show hanging details;
- dimension properly;
- draw to scale;
- name the view;
- draw neatly.
(II) Sectional end elevation
- cutting plane (F. E.);
- show position in Third Angle projection;
- project from F.E;
- show carcase details (top, bottom, back in section);
- show door details in section;
- dimension properly;
- draw to scale;
- name the view.