### Measuring Castings using Straight Edge

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

### Machine, Mowing

This is a mechanical drawing depict the top view of a lawn mower.

### Development Exercise of Octagonal Light Shade

A problem exercise creating a stretched out or developed image of the octagonal light shade by using…

### Development Exercise of Octagonal Roof and True Shape of Rafter

Problem exercise in drawing a development or a stretchout image of the octagonal roof and finding the…

### Constructing 4 Point Star Overlapping Box Pattern using T Square and Triangle

A problem exercise to construct a star overlapping square using a triangle and T square. The image is…

### Constructing Star and Box Overlap Pattern using T Square and Triangle

The construction of a star with square overlapping each other using a triangle and T square. This image…

### Drawing Exercise for Drawing Diagonal Line Pattern using T Square and Triangle

A diagonal line pattern drawing exercise in for T square and triangle. The image is constructed by dividing…

### Estimating Lines using Pencil

"Holding the pencil in a plane perpendicular to the line of sight, marking with the thumb the length…

### Perspective Outline of Object

An illustration of perspective drawing using a picture plane to create a vanishing points of the image.

### Angular Perspective

A series of illustration of the image showing the different perspectives showing vanishing points and…

### Parallel Perspective

"An object in parallel perspective with one face in the picture plane is shown. At B is shown the top…

### Conventional Breaks Symbols of Pipe or Tubing without Cutting Diameter

A shortcut drawing pipe or tubing conventional break to draw a pipes and tubes by shortening the length…

### Printing Press

This printing press used a rotating roller to apply ink on the chosen surface.

### Feeder, Printing Press

This is a printing press attachment that is used to facilitate the process of feeding paper into a printing…

### Pentagon Development Prism Exercise

An exercise developed to draw a rolled out or development of the pentagon prism in a 4" by 5" surface.

### Pentagonal Prism Development Exercise

An exercise in drawing a pentagonal prism development or rolled out image in a 4" by 5" area.

### Triangular Prism Development Exercise

An illustration to exercise a stretched out, or development, image of the triangular prism using 4"…

### Triangle Prism Exercise

An illustration to draw triangle prism's development, or stretched out surfaces, in a 4" by 5" surface.

### Development Exercise of Hexagonal Pyramid

A sample exercise problem in completing the top part of the hexagonal pyramid and to create a development,…

### Development Exercise of Oblique Hexagonal Pyramid

A sample exercise problem to complete the top part and create a stretched out image of the oblique hexagonal…

### Development Exercise of Pentagonal Pyramid

A pentagonal pyramid problem exercise to complete the top view of the image, and development, or rolled…

### Development Exercise of Pentagonal Pyramid

The problem exercise in completing the top view and creating the development, or rolled out, image of…

### Intersection of Surface of Revolution and Plane

"A series of planes as S—S are passed perpendicular to the axis of revolution, cutting out the…

### Large View of Riveting for Drawing

A large scale riveting illustration showing the length of the rivets for Osborn symbol for riveting.

### Side View of Standard Symbols for Shop Riveting

A side view of Osborn, or standard, symbol for riveting.

### Side View of Standard Symbols for Field Riveting

The standard standard symbol for field riveting, or Osborn symbol for field riveting.

### Standard Symbols for Shop Riveting

A conventional standard symbol for shop riveting known as Osborn symbol.

### Conventional Breaks Symbols of Round Section Cylinder

A conventional break symbol for a round section to use as a shortcut in shortening the length of the…

### Lift Sail

This drawing depicts the use of a sail where perpendicularly placed so that opposing wind provides the…

### Conventional V Thread Screw

An illustration of the V thread screw. The screw is drawn by connecting the two opposite points of the…

### Double Thread Screw

A double thread screw drawn by drawing diagonal lines in between the pitch. The double thread screw…

### Square Thread Screw Mechanical Drawing Representation

Illustration of a common representation for square thread screw. The screw is drawn in two dimensions…

### Square Thread Screw

A close up of a square thread on a screw. This representation shows the correct an accurate three dimensional…

### Aluminum

Mechanical drawing convention for identifying Aluminum. Using conventionalized patterns to identify…

### Brick

Mechanical drawing convention for identifying brick. Using conventionalized patterns to identify materials…

### Cast Iron

Mechanical drawing convention for identifying cast iron. Using conventionalized patterns to identify…

### Cast Steel

Mechanical drawing convention for identifying cast steel. Using conventionalized patterns to identify…

### Composition

Mechanical drawing convention for identifying composition materials. Using conventionalized patterns…

### Concrete

Mechanical drawing convention for identifying concrete. Using conventionalized patterns to identify…

### Concrete Blocks

Mechanical drawing convention for identifying concrete blocks. Using conventionalized patterns to identify…

### Copper

Mechanical drawing convention for identifying copper. Using conventionalized patterns to identify materials…

### Fire Brick

Mechanical drawing convention for identifying fire brick. Using conventionalized patterns to identify…

### Insulating Material

Mechanical drawing convention for identifying insulating material. Using conventionalized patterns to…

### Malleable Iron

Mechanical drawing convention for identifying malleable iron. Using conventionalized patterns to identify…

### Water

Mechanical drawing convention for identifying water. Using conventionalized patterns to identify materials…

### Wood

Mechanical drawing convention for identifying wood. The left side of the illustration shows an endgrain…

### Wrought Iron

Mechanical drawing convention for identifying wrought iron. Using conventionalized patterns to identify…

### Wrought Steel

Mechanical drawing convention for identifying wrought steel. Using conventionalized patterns to identify…

### Zinc

Mechanical drawing convention for identifying zinc. Using conventionalized patterns to identify materials…

### Machine, Seeding

This seeding machine was used to facilitate the process of planting seeds into the soil.

### Different Cone Shading

"A conical surface may be shaded by driving a fine needle at the apex and swinging a triangle about…

### Lever Shading

An application of shading double curved surface of a lever.

### Piper Shading

Line shading of a pipe using double curved surface technique.

### Screw Shading

An application of shading using double curved surfaces of a screw in the socket.

### Sphere Shading

A line shading for spheres by guessing how the surface would look when shaded.

### Thumb Screw Shading

A thumb screw shading illustrating a double curved surface line shading technique.

### Wheel Shading

Shading wheel using lines by estimating how the light hit the surface.

### Isometric Sketch

An illustration of an isometric sketch to show a three dimensional object. The sketch is useful in elevation…

### Conventional Breaks and Other Symbols

A series of illustration with conventional breaks and other symbols. The break in the bar is used as…

### Electrical Symbols

A series of general electrical symbols commonly used in mechanical drawing.