Drafting & Sketching Cornell Notes Each person gets: Basic
Drafting Tools Facts & Tools Review Questions Each group gets:
Engineering Graphics Packet (Basic Drafting & Sketching) Each
person creates Cornell Notes Gather information on: Drafting tools,
types of views, sketch examples of the views & tools, etc.
http://goo.gl/WDGGlw *Both ppts can be found on my website
Slide 3
Basic Drafting & Sketching Notes Objective: Explain the
differences btwn drafting & sketching, the 6 views, the diff.
btwn oblique & isometric drawings, and differentiate btwn
various drawing tools Questions generated (3 Level 2 or Level 3
questions) Summary: Summarize your notes by explaining the
differences btwn sketching and drafting. Name: Pd: Date:
Slide 4
Engineering Graphics Basic Drafting Facts and Tools Copyright
Texas Education Agency, 2012. All rights reserved.
Slide 5
What is the difference between Sketching & Drafting?
Essentially the difference is that when you are sketching, you ONLY
use a pencil and your hand. The minute you use a tool like a
triangle, you are drafting, because a tool helps you draw things
more precisely. 5 Copyright Texas Education Agency, 2012. All
rights reserved.
Slide 6
How many views does every object have? They are six (6) views
we could draw, but we only draw three (3). Top, Front, & Right
Side. We will cover these more in depth later. 6 Copyright Texas
Education Agency, 2012. All rights reserved.
Slide 7
We draw oblique pictorials, of which the front view angle is 90
0 and the sides are 45 0. Cabinet = Full depth Cavalier = depth We
will cover these more in depth later 7 Copyright Texas Education
Agency, 2012. All rights reserved.
Slide 8
We draw isometric pictorials in which all of the views are
drawn at 30 0. We will cover these more in depth later 8 Copyright
Texas Education Agency, 2012. All rights reserved.
Slide 9
Different lines we could draw. There actually many more, these
are just the basics. We will cover these more in depth later. 9
Copyright Texas Education Agency, 2012. All rights reserved.
Slide 10
Drafting Tools & The Uses 10 Copyright Texas Education
Agency, 2012. All rights reserved.
Slide 11
Straight Edge Guides Purpose is to line up drawings and keep
everything square. Drafting Arm T Square Parallel Bar 11 Copyright
Texas Education Agency, 2012. All rights reserved.
Slide 12
Templates Quickly and accurately draw objects that are drawn
often. There are MANY more, each for its own use. Examples:
architectural, landscape, electronics, etc. Circle Templates
Ellipse Template 12 Copyright Texas Education Agency, 2012. All
rights reserved.
Slide 13
Drawing Mechanical Pencils: for drawing, use the.5mm for all
general work. Use the.7mm for darker or finished work. .5mm is the
work horsekeep all lines light until you are finishing it up.
Eraser Shield is for erasing parts of the drawing. It will help
keep you from erasing the parts that are correct. Lettering Guide
is used to create guide lines for lettering. Mechanical Pencils
(2).5mm &.7mm Eraser Shield AMES Lettering Guide 13 Copyright
Texas Education Agency, 2012. All rights reserved.
Slide 14
Irregular Curves Used to help draw circular items. Examples:
ellipses, cycloids, etc. Flexible Curve French Curves 14 Copyright
Texas Education Agency, 2012. All rights reserved.
Slide 15
Clean Up Tools Used to erase mistakes. Used to clean off your
drawing & work station. NEVER use just your hand to clean up or
you will smear the lead! Eraser n ALWAYS clean up behind yourself!
Leave the station as clean, or cleaner, than when you used it!
Brush 15 Copyright Texas Education Agency, 2012. All rights
reserved.
Slide 16
Layout Tools Compass is used to draw precise circles, arc, etc.
Can also be used to help layout marks. Divider is used to get
precise measurements, & transfer measurements. Divider Bow
Compass 16 Copyright Texas Education Agency, 2012. All rights
reserved.
Slide 17
Triangles Used to draw perfectly square lines with the straight
edges tools. Each has the most commonly used angles required. When
combined, they can get you all of the other angles you might need.
30/60 Triangle Tall & Skinny 45 Triangle Short & Fat 60 0
30 0 45 0 17 Copyright Texas Education Agency, 2012. All rights
reserved.
Slide 18
Drafting Scales Used to draw objects precisely or exactly.
Engineers: deals primarily with inches and based on 10 parts.
Architectural: deals with feet & inches. 16 is regular ruler.
All other the fractions represent a foot or 12. Metric based on MM
& 10 parts. Refer to lessons on Scales for more information. 18
Copyright Texas Education Agency, 2012. All rights reserved.
Slide 19
Summary You need to know your tools and how to correctly use
them. Yes, Auto CAD is the most used tool, but you must understand
how the process works. Then, youll become a better drafter. Also,
very often you maybe called upon to draw something with no computer
around, so you will be better prepared if you know these tools and
how to use them. 19 Copyright Texas Education Agency, 2012. All
rights reserved.
Slide 20
Remember to. Use this information to complete the ABC Review
Sheet for this lecture. 20 Copyright Texas Education Agency, 2012.
All rights reserved.
Slide 21
BONUS: Want to learn more about the history of drafting?
Essentially, drafting has been around since man first started
drawings. Write a 1 page synopsis about what you learn about the
History of Drafting. This website has an excellent explanation of
the History of Drafting. http://www.uen.org/utahlink/tours/tourVie
wCategory.cgi?category_id=21312&tour_id =14435
http://www.uen.org/utahlink/tours/tourVie
wCategory.cgi?category_id=21312&tour_id =14435 21 Copyright
Texas Education Agency, 2012. All rights reserved.
Slide 22
Textbook Texas approved publishers are: Goodheart-Willcox
Delmar Learning Prentice Hall All have a companion workbooks with
more problems. I recommend using it, or any other approved
textbook, i.e., if you are ATC or TechPrep and must teach using
local colleges textbook. 22 Copyright Texas Education Agency, 2012.
All rights reserved.b