10.2 Building Models and Prototypes Flashcards Preview

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Flashcards in 10.2 Building Models and Prototypes Deck (15)
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1
Q

What is an important consideration for building models and prototypes?

A

An important consideration for building models and prototypes is: Who is going to make it?

2
Q

What are two basic choices when we want a model or prototype?

A

Two basic choices when we want a model or prototype:

  • Make and/or assemble in-house
  • Outsource it
3
Q

What are three major factors that dictate who makes our model?

A

Three major factors that dictate who makes our model include:

  • Expertise
  • Expense
  • Time
4
Q

Is it generally preferred to buy parts/components from suppliers or to make them in-house?

A

There are a lot of parts and components that are best bought from suppliers, unless we happen to be in the business of designing and making those particular items.

5
Q

What types of items should always be bought from suppliers?

A

Common mass-produced items should always be bought.

Caveat: It is wise to check your institution’s stockroom(s) to see whether the parts are already available.

6
Q

Which two developments have dramatically changed the ease with which we can find suppliers and parts?

A

The following developments have dramatically changed the ease with which we can find suppliers and parts:

  • the internet
  • the widespread use of just-in-time manufacturing
7
Q

What is one option for making basic models or prototypes?

A

One option for making basic models or prototypes is to construct a mockup of a 3D part from 2D cutouts.

8
Q

Describe mockups.

A

Mockups are constructions of 3D parts from 2D cutouts. Materials used for these mock-ups might be foam, thin plastic, or wood.

9
Q

What is the general process of building a mockup?

A

The process is as follows:

  1. 2D parts can be made using a vinyl cutter or a laser cutter.
  2. The parts are then assembled into 3D mock-ups of a design.
10
Q

What methods are employed in the production of models and prototypes?

A

The following methods are employed in the production of models and prototypes:

  • mock-ups
  • machining
  • rapid prototyping technologies
11
Q

When would a designer resort to machining?

A

Designers may resort to machining if the designers intend to make/machine the parts themselves.

We may have the option of machining parts or all of our prototypes ourselves in a machine shop.

Typically, there are separate machine shops for woodworking and metalworking.

12
Q

What is a relatively fast and cheap method for creating protoypes?

A

Rapid prototyping technologies have emerged in recent years as relatively fast and cheap ways to fabricate prototypes that would otherwise need to be injection molded.

13
Q

What method for developing prototypes and models would a designer use in order to make part or all of a prototype/model themselves?

A

Machining

14
Q

What is the process for rapid prototyping technologies?

A

Rapid prototyping techniques:

  1. 3D CAD models are used as inputs.
  2. These 3D files are converted into thin 2D layers to build the 3D part.
15
Q

What is an important consideration when estimating cost?

A

It is wise to plan for miscalculations of:

  • prices
  • numbers of parts
  • amounts of materials that we will use

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