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Gsmst foe 04 sketching and dimensioning part 3 07
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Gsmst foe 04 sketching and dimensioning part 3 07

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  • Overview: Lettering must be neat and readable – Should use all capital letters Tools Traditional hand sketching Computer Aided Drawing (a large industry producing computer packages they may have heard of in AutoCad, ProEngineer, SolidWorks) Media (how we record) Paper – helpful to know about Standard Sizes (Table 1) and Title Blocks Alphabet of lines - examples of line types.
  • Tell the students that this guide to good lettering is on the website. Tell them that they should use all caps for notes on drawings and the letters should be ~1/8 inch or 3 mm high. The reason for using all caps is that someone could reduce the size of their original drawing on the copy machine. The capital letters can be reduce by 50% and still be readable. We expect good quality lettering and the lettering to be done in vertical gothic font.
  • Transcript

    • 1. Engineering Drawing Sketching Skills GSMST
    • 2. Objectives
      • Tips and Techniques
      • Lettering
      • Patience and practice needed
    • 3. Sketching
      • Although most final drawings are computer generated, initial and freehand sketches are vital to the design process
      • Freehand does not mean messy. Sketches should display an adequate amount of detail, and any pertinent notes/comments pertaining to the drawing
        • For instance, if a line is supposed to be straight, make it as straight as possible. A square will not pass for a circle.
    • 4. Sketching
      • Sketching is a rapid , freehand method of drawing without the use of drawing instruments. Sketching is also a thinking process and a method of communication .
    • 5. Sketching
      • This is not artistic sketching, but technical sketching
      • Emphasis will be on sketching geometric figures to represent features of objects
      • Medium grade pencils work best for sketching
      • All lines should be dark enough to standout from the page
    • 6. Engineering Drawing Rules
      • Always use a Pencil.
      • Make all lettering the same size.
      • Use Engineering or Drafting Paper.
    • 7. Pencil Lead Designation
      • Note: Reverse order below
    • 8. Sketching Tips Sketching straignt lines does not mean they have to look like they are machine drawn.
    • 9. Sketching Tips
      • If you don’t have a ruler, you can estimate dimensions using your pencil when sketching
      • Always keep your pencil at arms length. Why?
    • 10. Sketching Tips
      • Layout of drawing using your pencil for dimensional reference
    • 11. Lettering
      • The style of engineering lettering we will use in this course is Single Stroke Gothic Lettering
        • An example of the characters is shown on drawing numbers 1 and 2
        • Notice that only capital letters are demonstrated, since we will use only capital letters on drawings
    • 12. Lettering Notes
      • Lettering Guidelines – Handout
      • Lettering Styles
        • Shape of Letters
        • Order of Drawing Lines
      • Character Uniformity
      • Spacing
    • 13. Single Stroke Gothic Lettering
    • 14. Lettering – Vertical Gothic Font
    • 15. Lettering with Fractions
    • 16. Sketching Techniques