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Lettering

TECH 1521

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Professionalism

Ethical Conduct

  • Safety Health and Welfare
  • Area of Competence
  • Professional Development
  • Act as Faithful Agent
  • Reputation by Merit
  • Reputable Associations
  • Objective and Truthful
  • Environmental Impacts Considered

Beware of anything you put in writing.

Anticipate document discovery

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Example of what not to do

Zen Magnet Buckyballs “warning”

Warning: DO NOT SWALLOW MAGNETS. How old do you have to be to play with these? Dunno. 15 years old in the U.S. for a strong magnetic toy, unless it’s not a toy, then no age limit, but they’re fun magnets spheres [sic], aren’t they a toy? Unless it’s a “science kit” then the government age recommendation is 8+. But really, it’s whatever age at which a person stops swallowing non-foods.

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Professionalism

Clarity

Precision

Accuracy

Depth

Breadth

Logic

Objectivity

Relevance

Significance

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Importance of Clarity

Engineering documentation becomes legally binding.

All engineering documentation must be neat, orderly and clear (not necessarily lettered).

  • Purchase orders
  • Engineering change requests
  • Engineering notebooks

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Workmanlike Manner...

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Technical Lettering

Can be produced

  • Freehand
  • Mechanically
  • CAD

http://www.flickr.com/photos/mightyohm/3078545027/

CCL-BY-SA

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Freehand Lettering

All drawings and sketches must be lettered.

  • Guidelines are required (use hard lead).
  • Use only uppercase.

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Style of Text

Single-stroke Gothic

Sans-serif

May be inclined

or vertical

In case you are wondering: I'm inclined to like the vertical.

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Making Guidelines

  • Lettering Guides
    • AMES Lettering Guide

Note: Engineering paper is not spaced for guidelines. You will need to add an upper guideline even if you are using engineering paper.

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Making Guidelines

  • You can layout guidelines by measuring them...

Use your dividers!

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Making Guidelines

The Rapidesign lettering guide is used to guide letter height. It is not used to make guidelines.

This is my favorite way to letter. I still have and use mine.

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Mechanical Lettering

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Using a Lettering Template

These have a stencil for each letter. They are the best way to make super-consistent letters manually. You must lay the template against a horizontal rule such as a T-square.

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Zephyr Lettering Set

Actually a type of pantograph. Used to create high-quality letters before the computer days. Could be used to ink drawings.

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Dry Transfer Letters

Were used for for high quality lettering.

Commonly used drafting symbols were also available.

http://en.wikipedia.org/wiki/File:Letraset-boegen.JPG

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Making Text in AutoCAD

Commands:

TEXT OR DTEXT

MTEXT (T)

STYLE (ST)

DDEDIT (ED)

Variables:

MIRRTEXT

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Styles and Fonts in AutoCAD

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Other text properties

Justification

(Height)

Rotation Angle

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Text in Blocks

Title block text is often put into block. It is edited by using the ATTEDIT command.

ATTDEF

DDEDIT

BLOCK

INSERT

ATTEDIT

DDATTE

There are actually some very powerful uses for this when used with the ATTEXT command.

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Text in Dimensions

There are some text properties that relate specifically to dimensions. Such as:

Decimal places

Units

These are set in the DDIM dialog box

Bundled into DIMSTYLES similar to the styles used with text.