Drawing instruments and materials

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Drawing Instruments and Materials

There are specialized instruments used in technical drawing. These include:

• Drawing boards
• T-square
• Setsquares (45°, 60°, 30°)
• Pair of compasses
• Pair of dividers
• Protractors
• Rulers
• French curves or flexible curves
• Stencils
• Sharpeners
• Drawing paper
• Erasers
• Masking tape/draughting or sellotape
• Clips
• Pins
• Pencils
• Shields

Here are some details about these instruments:

• Drawing Boards: A drawing board is rectangular in shape and made from good quality wood with a smooth, flat surface.
• T-Square: The T-square is a T-shaped instrument usually made of perspex or wood, with two parts: the stock and the blade.
• Setsquares: Setsquares are right-angled triangular flat drawing instruments usually made of transparent materials.
• Compasses and Dividers: Compasses are used for drawing circles of different diameters, while dividers are used for transferring dimensions from the ruler to the drawing on paper.
• Protractor: This is a semi-circular instrument made from celluloid, used for measuring angles.
• Rulers: Used for measuring dimensions, rulers are made from plastics, metal, or wood.
• Templates and Stencils: These are pre-formed patterns of various geometrical shapes.
• Erasers: Used for erasing mistakes during drawing, erasers must be of good quality to erase neatly.
• Curves: Available in rigid and flexible types, used for drawing curved lines.
• Pencil Sharpener: Used for sharpening pencils.
• Drawing Paper: Cartridge type paper is preferred for technical drawing as it can withstand erasing without tearing.
• Masking/Drawing Tape: Important for holding the paper down on the drawing board.