The Mechanical Drawing ClipArt gallery offers 112 illustrations of drafting techniques and practices.

Orthographic projection drawing of stairs. An orthographic projection is the method of representing…

The line can be divided by using the divider and estimating the leg distance by the eye.

An illustration of the hexagonal bolt head showing measurements. The measurement of diameter, D, is…

In changing the compass from a small to large radius, hold the legs together with one hand and spin…

Always draw a circle in one stroke, inclining the compass in the direction of the line and rolling the…

An application of line shading for curved surfaces used in mechanical drawing. The surfaces are shaded…

A representation of the square threaded nut and screw. The left image shows the threaded screw with…

A representation of the square threaded nut and screw. The left image shows the threaded screw with…

It is possible to draw lines forming angles of 15 and 75 degrees by arranging two triangles.

When drawing the circle, the compass is turned by the handle with the thumb and forefinger in a clockwise…

To fasten the paper, lay a sheet on the board with the left edge an inch or so from the ending, place…

Parallel lines are drawn by using a triangle in combination with a T-square. To draw a line parallel…

Lines perpendicular to each other may be drawn by using a triangle in combination with the T-square.…

"Circles up to perhaps three inches in diameter may be drawn with the legs straight but for larger sizes…

Circles should be unshaded or shaded evenly with thick and thin lines, changing at about 45 degrees.

The 45-degree triangle can be used to make a line at a multiple of 15 degrees.

The arrows shows the motion direction of drawing a 30-degrees, 45-degrees, or a-60 degrees angle using…

T-squares can be used in conjunction with a drawing board to draw parallel lines.

Parallel lines are drawn by holding the triangle against the T-square at an angle, or another triangle,…

Perpendicular lines are drawn by fitting the hypothenuse of the triangle to the T-square at an angle,…

Bow instruments can be used for drawing small circles. Hold the the left hand and spin the nut in or…

When drawing vertical lines, the blade of the T-square is held with the thumb while the fingers adjusting…

Triangles are used in drawing lines at right angles to the T-square.

The illustration shows the finger position of the compass after the revolution. — French, 1911

Finding the center of gravity of a parallelogram. The point of intersection C is the center of gravity.

The center of gravity of a triangle is the point of intersection O of the midpoint lines.

The little finger on the left hand can guide the needle point of the compass to the center.

A screw head with detailed measurements for accurate drawing. These measurements are based off the diameter…

A Alteneder Company bottle holder that prevents the ink bottle from spilling onto the drawing, table…

For better control of the divider, hold the divider with the thumb and the index finger on the outside…

"The pen should be held with the thumb and second finger in such position that they may be used in turning…

All lines in a mechanical drawing are made with the aid of an instrument. Horizontal lines are drawn…

Horizontal line can be drawn left to right by holding the pencil away from the point.

"Illustrating the rule that an inclined illuminated surface is lightest nearest the eye and an inclined…

An example of the cylinder shaded by lines. The area without lines are where the light hit the cylinder.…

"A row of cylinders of different sizes. The effect of polish is given by leaving several brilliant lines,…

Castings can be measured by laying a straight edge on top to measure the dimensions of the casting.

An orthographic projection of a pyramid from three dimensional space into two dimensional space

"The Pantograph, or Pantagraph, is an instrument used in copying plans, maps, and other drawings, so…

Do not hold the pen over the drawing while filing. Keep the blades parallel to the direction of the…

An illustration of sharpening a pen to equal shape and length using a a stone soaked in oil. The pen…

The pen should be held positioning for strokes to move downwards with a steady, even motion and uniform…

Lettering is the process of forming letters, numerals, and other characters in technical drawings.

"It (pen) should be held easily, in the position as illustrated, the strokes drawn with a steady, even…

"For the first practice draw in pencil top and bottom guide lines for 3/16" letters and with a 516 F…

A body is shown as projecting from its surface projection lines, and these lines are cut by a plane.…