3D Design Midterm

An acceptable range of dimensional variation that still allows for proper function

Engineers and Geoscientists of British Columbia

Meets the needs of the present without compromising the ability of future generations to meet their own needs

Manufacture>Use>Recycle>

Social, Economic, Environmental

Life cycle assessment

Define problem>Gather info>Brainstorm>analyze> construct a prototype>Test

Directly from consumer, manufacturer, etc

Information collected from public sources, journals, etc

Vague set of wishes that customers would like product to perform

Designers detailed breakdown of what product should do and achieve without providing solutions

People or organizations that have a stake or interest in the technology you are creating

Features and characteristics present in the product

Relationship between it’s inputs and output

A boundary box, an overall function, function tree, known flow of materials

Survey of existing designs(Reverse engineering)

A solution independent statement that preserves only the essential characteristics of the design problem

-Group is a collection of people with some common characteristics or purpose

-Team is two or more people working together to achieve a shared goal

-Dynamic exchange of information and resources

-Task activities coordinated among individuals

-High level of interdependence among team members

-Ongoing adjustments to both the team and individual task demands

-A shared authority and mutual accountability for performance

Human Resources Person, Spokesperson, Chief Engineer, Captain

Matrix Diagram that allows for the comparison of a number of design candidates leading ultimately to which best meets a set of criteria

The team first establishes a list of weighted criteria and then evaluates each option against those criteria

Hours=A*PC*D^(0.85)

-PC=Project Complexity(j1*Fj1)+(j2*Fj2)+(...):

j=Level in the functional diagram

Fj=Number of functions at that level

-A=Constant based on Past Projects

Small Company=30

Big Company=150

-D=Project Difficulty

Easy to difficult=1-3

Mock-up, Model, Prototype

Proof of-

Concept

Product

Process

Production

-Accuracy is how close a measured value is to the actual value

-Precision is how close the measured values are to each other

A 3 dimensional object shown using several 2 dimensional planes(However many is necessary to accurately show object)

A 3 dimensional object shown with 3 visible sides of the object from the same angle to each other.

Type of projection that represents objects as we see them or as they would appear in a photograph

Type of projection that projectors are parallel with object

Parallel projectors are perpendicular to the plane of projection

Projectors are parallel to each other, but are at an angle other than 90 ̊ to the plane of projection

Object is tipped to the planes of projection so that principal faces, such as the top, side, and front, show in a single view

The angles in the isometric projection of the cube are either 120 ̊ or 60 ̊, and all are projections of 90 ̊ angles

Lines of an isometric drawing that are parallel to the isometric axes

Lines of an isometric drawing that are not parallel to the isometric axes