Here's how to draw a straight horizontal or vertical line in a technical drawing. The first step before drawing is to tape the sheet of paper to the drawing board.
The following tools and materials are required to draw a horizontal line:
-
A sheet of paper properly attached to the drawing board
-
A lead pencil
-
A T-square
-
Place the T-square against the edge of the drawing board.
Right-handed people should press the T-square against the left edge of the drawing board, while left-handed people should press it against the right edge. -
Slide the T-square up or down so that its top edge is where the horizontal line has to be drawn and then hold it firmly in place.
-
Gently draw the line along the top edge of the T-square with the lead pencil.
Right-handed people should trace from left to right, tilting the pencil slightly to the right, while left-handed people should trace from right to left, tilting the pencil slightly to the left.
Technique for left-handed people
Technique for right-handed people
The following tools and materials are required to draw a vertical line:
-
A sheet of paper properly attached to the drawing board
-
A lead pencil
-
A T-square
-
A |45^\circ| set square
-
Place the T-square against the edge of the drawing board.
Right-handed people should press the T-square against the left edge of the drawing board, while left-handed people should press it against the right edge. -
Slide the T-square up or down so that its top edge is slightly below where the vertical line has to be drawn and then hold it firmly in place.
-
Place the set square with one edge against the top edge of the T-square.
Right-handed people should have the vertical edge of the square to the left, while left-handed people should have the vertical edge to the right. -
Slide the set square so that its vertical edge is where the line has to be drawn and hold it firmly in place.
-
Gently draw the line along the vertical edge of the square with the lead pencil.
Technique for left-handed people
Technique for right-handed people