Engineering drawing (engineering lettering) lesson 3
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Transcript of Engineering drawing (engineering lettering) lesson 3
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Engineering Lettering
Mr. Ismael M. QuiazonAMT, BSCpE, M’Engg
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Objectives
Tips and TechniquesLetteringPatience and practice needed
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Lettering Notes
Lettering Guidelines – HandoutLettering Styles Shape of Letters Order of Drawing LinesCharacter UniformitySpacing
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Pencil Techniques
The best pencil for lettering on most surfaces are the H, F, and HB grades.Hold your pencil in the position shown. It should make approximately a 60o angle with the paper.
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Pencil Techniques
The best pencil for lettering on most surfaces are the H, F, and HB grades.Hold your pencil in the position shown. It should make approximately a 60o angle with the paper.
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Pencil Lead Designation
Note: Reverse order below
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Freehand Lettering
Developing good lettering is a personal skill which takes practice. Letters must be formed properly.
They must be open shaped very legible.
Clear communication is essential to avoid mistakes and reduce waste.Lettering may be done using a drafting type pencil, lead holder or technical pen. Which ever tool is used, the letters must properly formed and very black
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Freehand Lettering
Pull the pencil or pen across the paper. All lettering strokes should be a pulling motion.
Right-handed and left-handed drafters may have to develop different styles for forming letters.
Press down hard when using a pencil.
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Freehand Lettering
Vertical capital letters are preferred for most technical work. They are formed within a 6 by 6 grid.
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Straight Line letters
Most letters are slightly narrower than they are tall. The shapes of the letters are as open as possible. Letters with small loops and crossing strokes are avoided
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Straight Line letters
This sequence is recommended to assure that each letter is the correct width in relation in height. For example, form the two vertical sides of the “H”, “N” and “M” first. Form the top of the “T” first.
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Straight Line letters
The “H” and “N” are slightly narrower than they are tall.
The “T” and the “M” are just as wide as they are tall
Note: Proportion: width vs. height is very important in forming letters.
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Lettering
The style of engineering lettering we will use in this course is Single Stroke Gothic Lettering Notice that only capital letters are
demonstrated, since we will use only capital letters on drawings
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Single Stroke Gothic Lettering
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Single Stroke Gothic Lettering
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Single Stroke Gothic Lettering
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Single Stroke Gothic Lettering
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Single Stroke Gothic Lettering
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Single Stroke Gothic Lettering
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Lettering – Vertical Gothic Font
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Lettering – Vertical Gothic Font
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Lettering – Vertical Gothic Font
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Lettering – Vertical Gothic Font
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Lettering with Fractions
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Your Turn! Practice Engineering Lettering
Practice Strokes
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Your Turn! Practice Engineering Lettering
Order and direction of Strokes
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22 and ¾ Inches
14 and ¼Inches 7
Inches
5 and ½ Inches
White Cartolina (glossy)
7 Inches
2 Inches
5/8 Inch
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22 and ¾ Inches
9/16 Inches
5 and ½ Inches
White Cartolina (glossy)
7 Inches
2 Inches