Involute of Pentagon
"An involute is a curve generated by unwrapping an inflexible chord from around a polygon. Thus the…
Draw Spiral of Archimedes
"Divide the circumference into a number of equal parts, drawing the radii and numbering the points.…
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…
Supporting Brace for Bicycles
This supporting brace for bicycles is also known as training wheels, which are mounted parallel to the…
Three Wheeled Vehicle
A tricycle is a three wheeled vehicle, while tricycles are often associated with the small three wheeled…
Architects Drafting Square
A T-square is a technical drawing instrument, primarily a guide for drawing horizontal lines on a drafting…
Pantograph Machine
A Pantograph is a mechanical linkage connected in a special manner based on parallelograms so that the…
Metal Artwork Frame
This metal frame is used to enhance a work of art aesthetically, as well as to protect it from dirt,…
Shading a Circle Using Compass
"A circle may be shaded by shifting the center on a 45-degree line toward the lower right hand corner...…
Intersection of Two Cylinders
"The intersection of two cylinders might represent a dome on a boiler. If the top view of cylinder A…
Two Cylinders with Axes Not Intersecting
"If the cylinder A were to be developed a right section as at S—S would have to be taken, whose…
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…
Triangle Prism Exercise
An illustration to draw triangle prism's development, or stretched out surfaces, in a 4" by 5" surface.
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"…
Development Exercise of Cylinder
An exercise problem in creating a development or rolled out surface of a cylinder in a 4" by 5" drawing…
Development Exercise of Cylinder using Three Piece Elbow
The exercise problem of creating a three piece elbow development or rolled out image of the cylinder…
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…
Development Exercise of Dome and True Shape of Hip
A development or rolled out image exercise problem of the dome and finding the true shape of the hip,…
Development Exercise of Triangular Pyramid
Exercise problem to develop, or rolled out, image of the triangular pyramid by creating an equal length…
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 Octagonal Light Shade
A problem exercise creating a stretched out or developed image of the octagonal light shade by using…
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 Cone
Development and top completion exercise problem of the cone by dividing the base into equal parts and…
Development Exercise of Flange and Hood Cones
An exercise problem to complete the top and develop, stretched out, image of the flange and hood cones…
Development Exercise of Pentagonal Pyramid
The problem exercise in completing the top view and creating the development, or rolled out, image of…
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…
Mechanical Drawing Cross Hatching of Material Symbols
"The illustration gives conventions for a number of different materials. Those in the first line are…
Mechanical Drawing Cross Hatching of Cast Iron
A conventional cross hatching material symbol for cast iron.
Mechanical Drawing Cross Hatching of Babbitt
A conventional cross hatching symbol for Babbitt, metal composed of tin and copper.
Mechanical Drawing Cross Hatching of Brass
The conventional material symbol using cross hatching technique for brass.
Mechanical Drawing of Cross Hatching Cast Steel
A mechanical drawing cross hatching symbol for cast steel.
Mechanical Drawing Cross Hatching of Wrought Iron
A wrought iron conventional cross hatching symbol.
Mechanical Drawing Cross Hatching of Copper
Conventional cross hatching mechanical drawing of copper.
Mechanical Drawing Cross Hatching of Wrought Steel
The conventional cross hatching mechanical drawing symbol for wrought steel.
Mechanical Drawing Cross Hatching of Face Hardened Steel
A conventional face hardened steel, commonly used in military armory, cross hatching mechanical drawing…
Mechanical Drawing Cross Hatching of Leather
A conventional leather cross hatching mechanical drawing symbol.
Mechanical Drawing Cross Hatching of Glass
Conventional cross hatching for glass for mechanical drawing.
Mechanical Drawing Cross Hatching of Liquid
A conventional liquid symbol in cross hatching used in mechanical drawing.
Mechanical Drawing Cross Hatching of Insulating Material
Cross hatching conventional symbol for insulating material used in mechanical drawing.
Conventional Breaks and Other Symbols
A series of illustration with conventional breaks and other symbols. The break in the bar is used as…
Process of Drawing Off Beer
Cask ale or cask-conditioned beer is the term for unfiltered and unpasteurised beer which is conditioned…
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…
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…
Conventional Breaks Symbols of Pipe or Tubing by Cutting Diameter
The conventional break symbol for drawing a pipe or tubing by cutting the diameter in half.
Standard Symbols for Shop Riveting
A conventional standard symbol for shop riveting known as Osborn symbol.
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.
Large View of Riveting for Drawing
A large scale riveting illustration showing the length of the rivets for Osborn symbol for riveting.
Sketching Vertical Line
Vertical line is drawn downward with the pencil held with freedom, not close to the point.
Sketching Horizontal Line
Horizontal line can be drawn left to right by holding the pencil away from the point.
Measuring Castings using Straight Edge
Castings can be measured by laying a straight edge on top to measure the dimensions of the casting.
Perspective Outline of Object
An illustration of perspective drawing using a picture plane to create a vanishing points of the image.
Estimating Lines using Pencil
"Holding the pencil in a plane perpendicular to the line of sight, marking with the thumb the length…
Parallel Perspective
"An object in parallel perspective with one face in the picture plane is shown. At B is shown the top…
Female Doll Figure
A doll is an object that represents a baby or other human being. Dolls have been around since the dawn…
Angular Perspective
A series of illustration of the image showing the different perspectives showing vanishing points and…
