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JSS1: BASIC TECHNOLOGY - 2ND TERM

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  1. Building Materials | Week 1
    5 Topics
    |
    1 Quiz
  2. Uses of Building Materials (Concrete) | Week 2
    5 Topics
    |
    1 Quiz
  3. Drawing Instruments & Materials (I) | Week 3
    4 Topics
    |
    1 Quiz
  4. Drawing Instruments & Materials (II) | Week 4
    2 Topics
    |
    1 Quiz
  5. Drawing Instruments & Materials (III) | Week 5
    2 Topics
    |
    1 Quiz
  6. Board Practise (I) & (II) | Week 6 & 7
    4 Topics
    |
    1 Quiz
  7. Title Block | Week 8
    2 Topics
    |
    1 Quiz
  8. Free - Hand Sketch | Week 9
    2 Topics
    |
    1 Quiz



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During board practice, the following steps must be strictly followed so as to achieve a very good and neat result.

1. Setting Paper on the Board:

To set your A3 paper on the board, do the following:

a) Put your A3 paper on the board, leaving equal space on all sides.

drawing board and paper

b) Put the Tee-square on the paper with the stock aligned with the board on the left side. There must be no gaps otherwise the paper will not be set up correctly and drawing accurate horizontal and vertical lines will be impossible.

draw1a

c) Adjust the paper to align with the blade of the Tee square.

draw2a

d) After making sure the paper is aligned on the board, use a small masking tape or clip to hold the paper to the board.

2. Drawing the Border Line:

The borderlines are drawn to obtain margins at the four edges of the paper at a distance of 10-15mm from the end of the paper. The method applied varies:

a) Using a pair of compasses, measure a 10 to 15 mm radius.

b) With the pin of the compasses at the edge of the paper, mark the sheet at the four edges.

technical drawing

c) With the aid of your Tee-Square, draw horizontal lines passing through the upper and lower marks made earlier.

td1
td2
draw3a
How to make horizontal lines with your tee-square.

d) With the aid of your 30°/60° set square, resting on the T-square, draw vertical lines to pass through the marks made on the right and left side of the paper. You can do this while rotating the set square.

td3.5
td4
draw4a
How to make vertical lines with your set square.

Shapes of Sharpening Pencil: Pencils should be sharpened to a conical point shape. This makes your work neater and easy to erase if there is any mistake.

technical drawing papwer with border lines
Paper with border lines.

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