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

### Orthographic Projection of Stairs

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

### Bisecting Line Using Divider

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

### U.S. Standard Hexagonal Bolt Head

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…

### Inking a Circle

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…

### Diagram of Square Thread Nut and Screw

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

### Diagram of Square Thread Nut and Screw

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

### Holding the Divider

The divider is held in the right hand.

### Dividers

Drawing equal parts, one of three.

### Dividers

Drawing equal parts, two of three.

### Dividers

Drawing equal parts, three out of three.

### Drawing Lines at an Angle 15 and 75

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

### Drawing a Circle Using Compass

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

### Drawing Board Lettering Setup

This is a sample lettering plate.

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

### Drawing Parallel Lines Exercise

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

### Drawing Perpendicular Lines Exercise

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

### Drawing Large Circles with Compass

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

### Drawing Lines 4

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

### Drawing Lines using Triangle at Angles in Multiples of 15 degrees

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

### Drawing Lines using Triangle, 30-, 45-, 60-Degrees

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

### Drawing Parallel Lines

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

### Drawing Parallel Lines

Using a drawing board and pairs of triangles to draw parallel lines.

### Drawing Parallel Lines Using T-square and Triangle

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

### Drawing Perpendicular Lines Using T-square and Triangle

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

### Drawing Rectangles

A triangle and a T-square can be used in conjunction to draw a rectangle.

### Drawing Small Circles with Bow Instrument

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

### Drawing Vertical Lines Using a T-square and a Triangle

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

### Drawing Vertical Parallel Lines

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

### Electricity

An example of electricity: early galvanometer.

### Compass Finger Position

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

### Center of Gravity

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

### Center of Gravity

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

### Guiding Needle Point of Compass to Little Finger

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…

### Alteneder Company Ink Bottle Holder

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

### Divider Holding Position

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

### Holding the Pen

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

### Drawing a Horizontal Line

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

### Sketching Horizontal Line

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

### Storage House

The end view of a house that stores sweet potatoes.

### Hyperbola First Method

Draftsman's first method to draw a parabola

### Hyperbola Second Method

Draftsman's second method for drawing a hyperbola

### Use of Lengthening Bar

Lengthening bar is used to draw circles bigger than 10 inches.

"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.…

### Series of Cylinder Line Shading

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

### Measuring Castings using Straight Edge

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

### Orthographic Pyramid Projection

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

### Pantograph

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

### Parabola First Method

Draftsman's first method for drawing a parabola

### Parabola Second Method

Draftsman's second method for drawing a parabola

### Pen Positioning

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

### Sharpening Pen using Stone

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

### Position for Lettering

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

### Position for Lettering

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

### Side View of Position for Lettering Using Pen

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

### Top View of Position for Lettering Using Pen

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

### Projected Geometric View

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