Lecture 1 Drawing Introduction | Part 1 [Engineering Drawing]
Lecture 1 Drawing Introduction | Part 2 [Engineering Drawing]
GRAPHICSLANGUAGE
Effectiveness of Graphics Language
Try to write a description of this object.-
Test your written description by having someone attempt to make a sketch from your description.
Try to write a description of this object.
You can easily understand that …
Composition of Graphic Language
The language is known as or “drafting” .
A drawing can be done using freehand, instruments
or computer methods.
Example
Computer drawing
The drawings are usually made by commercial software such as AutoCAD, BIM etc.
Example
Engineering Drawing
Elements of Engineering Drawing
Basic Knowledge for Drafting
Traditional Drawing Tools
DRAWING TOOLS
DRAWING TOOLS
- T-Square 2. Triangles
DRAWING TOOLS
2H or HB for thick line
4H for thin line
3. Adhesive Tape 4. Pencils
DRAWING TOOLS
5. Sandpaper 6. Compass
DRAWING TOOLS
7. Pencil Eraser 8. Erasing Shield
DRAWING TOOLS
9. Circle Template 10. Tissue paper
DRAWING TOOLS
11. Sharpener 12. Clean paper
Lettering
Text on Drawings
Text on engineering drawing is used :
To communicate nongraphic information.
As a substitute for graphic information, in those instance where text can communicate the needed information more clearly and quickly.
Example Placement of the text on drawing
Lettering Standard
ANSI Standard This course
Use a Gothic text style, either inclined or vertical. Use all capital letters.
Use 3 mm for most text height.
Space between lines of text is at least 1/3 of text height.
Basic Strokes
Examples : Application of basic stroke
Upper-case letters & Numerals
Straight line letters
Curved line letters
Curved line letters & Numerals
Lower-case letters
The text’ s body height is about 2/3 the height of a capital letter.
Stroke Sequence Examples
Stroke Sequence
Stroke Sequence
Stroke Sequence
Stroke Sequence
Stroke Sequence
Example : Good and Poor Lettering
Example of Best Lettering
ALLODIMENSIONSOAREOIN MILLIMETERSOUNLESS OTHERWISEOSPECIFIED.
