Engr. Design Steps
Multiview Sketching
Pictorials
Definitions
Random
100
In this step wild ideas are encouraged.
Preliminary Ideas (Step 2)
100
The purpose of Multiview Sketching
To Represent a 3-D object with a series of 2-D views
100
This Oblique sketch has it's depth is drawn full size. Object looks distorted (depth is exaggerated).
Cavalier Oblique
100
A rough freehand drawing used to document, communicate, and refine ideas developed in the ideation phase of the design process
Sketch
100
These lines are represented with dashed lines
Hidden Lines
200
The most important step in the Engineering Design Process
Problem Identification (Step 1)
200
Which face should you select as the Front View?
The most descriptive one
200
This Oblique Sketch has it's depth drawn to 1/2 of full size. Depth appears more accurate.
Cabinet Oblique
200
A method of projection in which an object is depicted or a surface mapped using parallel lines to project its shape onto a plane. Another name for Multiview sketching.
Orthographic Projection
200
Mention 3 tools useful for sketching
Pencil, Paper, Eraser.
300
In this step you have everything documented; you work with the marketing, and summarize your test results.
Implementation (Step 6)
300
Which types of objects can be expressed by only one view?
Stamped, thin or extruded parts
300
This Axonometric Pictorial has Three equal angles (120 deg). Height drawn along vertical axis. Width and depth drawn at 30 deg to horizontal axis.
Isometric View
300
Represents a 90-degree fold between views
Fold lines
300
In the right hand rule, which finger corresponds to which axis?
Thumb to X-axis, Index to y-axis, Middle to z-axis.
400
In this step you apply the engineering and scientific principles to evaluate the design
Analysis (Step 4)
400
This projection preserves true relationship between features. The geometry is generally not distorted. Lines that are parallel on the object are parallel on the drawing
Parallel Projection
400
For this projection lines are always drawn parallel. It's easy to draw. Often appears distorted. Its two common types are Oblique and Isometric Pictorials.
Parallel Pictorials
400
A sketch developed for ease of visualization that shows an objects height, width, and depth in a single view
Pictorial Sketch
400
Name two examples of Solid Primitives
Box (Parallelepiped), Cylinder, Cone, Sphere, Wedge
500
In this step you are looking at the most promising ideas from the previous steps. Working out the details of each design, making more sophisticated computer modeling (design visualization), and you are establishing how your systems will interact.
Refinement (Step 4)
500
Difference between First Angle and Third Angle projection
First Angle has top/bottom and left/right views on the opposite side, while Third Angle has them on their corresponding place.
500
This type of Projection Pictorial is the most difficult to draw, is the most visually accurate, has the use of vanishing points.
Perspective Projections
500
The use of drawings in the engineering design process based on a system of well-established rules and conventions that clearly conveys information about an object
Engineering Graphics
500
Name the 6 principal views
top, bottom, front, rear, left, and right side