1/9• What is the purpose for

keeping an accurate and complete design journal?– Including

• Signature• Sketches (rough and refined)• Notations• Test results• Written in pen

Using an Engineering Design Journal

Guidelines for an

Engineering Design Journal

• All entries are dated and signed by the engineer• If an idea is marketable, the entries should also

be signed by a witness• Use a pen instead of a pencil so that ideas

cannot be altered• Do not erase anything• Fill in large blank spaces with Xs• Create all drawings to scale!

Annotating Sketches

• Write clarifying notes• Indicate if the drawing is a rough draft• Include a scale for every drawing

• Label key parts of drawings• Explain the functions of different parts• Add arrows to show movement• Fill in large blank spaces with Xs• Create all drawings to scale!

Inventing a New Kind of Pencil

• What is wrong with this pencil?• Too small• No eraser• Lead always breaks• Needs sharpening

What new features can we add to make it more useful?

• Put on an eraser• Make the eraser bigger• Make it longer• Make it skinnier

What about these pencils?

• Put on an eraser• Make the eraser bigger• Make it longer• Make it skinnier

Purpose of Sketching

• Visual brainstorming

• A fast way to work out new design ideas

• Creating a visual record of your ideas

• A method of communicating your ideas to others

• “Protect” your ideas

Sketching lines, shapes and forms

Sketching

• Orthographic (Two-dimensional objects)

• Isometric (Three- dimensional objects)

• Rough drafts (as opposed to scale drawings)

• Scale drawings/objects

Future History

How will an every-day item change in the next 20 years?

2008 Acura Sedan2031?

A Refrigerator Wired to Internet?

• A narrative is written to describe the object and how it has changed.

• Include potential desired and undesired outcomes as a review from the first unit.

• Create sketches of the new object, as it is today and what it may look like in 20 years.

All information is recorded in the Engineering Design Journal.

How will cell and telephones change?

• Recent telephone advances– Fiber optic cables rather than coaxial cables– Prestored numbers, call waiting, caller id, and

simultaneous voice and text communication– 4G technology that allows live video viewing

from cell phones– Wireless Application Protocol (WAP) provides

access to internet via telephone

Future Communications Narrative

• Think about how communication devices have changed in your lifetime

• How may communication devices change in 20 to 30 years?

• Write a BCR of at least five sentences• Prepare a written description of your future

communications device• Make a scale drawing of your future

communications device

Mobile and Cell telephones

Future Technology Design

• Identify a product or service that you find interesting

• How may that device or service change in 20 to 30 years?

• Write a BCR of at least five sentences• Prepare a written description of your future

device or service• Make a scale drawing of your future

communications device

LuminAID Solar Light

LuminAID Solar Light

LuminAID Solar Light

LuminAID Solar Light

LuminAID Solar Light

LuminAID Solar Light

How will these change?