Slide 2 Brian Briggs Community Colleges of Spokane Slide 3 #1:
Rulers There are three types of rulers for machinists: Flex Rules
Spring and Hook Rules Ground or Rigid Rules Slide 4 Rulers Flex
Rules: Thin and flexible. 6, 12, or 18 inches They are universal
tools. These rulers can help you double-check your work. Slide 5
How to Use a Ruler Please watch the video below.
http://www.youtube.com/watch?v=RFoXIsk y2cY Slide 6 Rulers Spring
and Hook Rulers Adjustable Slide 7 Rulers Ground or Rigid Rules 12,
18, 24, and 36 inch sizes The picture on the right shows a ruler
with a square, a protractor, and a centering head. Slide 8 #2:
Calipers Vernier Calipers--still used in schools because they are
very strong and easy to use. Industry still uses the longer 18-inch
Vernier calipers. Dial Calipers Electronic Calipers Slide 9
Calipers Zero Dial (Digital) Slide 10 #3: Outside Micrometers
Carbide-wear tips Insulated handle Tenths of an inch scale on
sleeve Slide 11 How to Read a Standard Micrometer Please watch the
video below. Slide 12 #4: Height Gages This tool is used for both
measuring and layout work. It measures how tall something is. A
height gage sits on a flat surface (such as a table) and measures
up. Slide 13 #5: Indicators Both types are precise and delicate.
They measure 1/1,000 or 1/10,000 Probe type: small and versatile
Travel type: more sturdy and measure greater ranges. Slide 14
Vocabulary Probe \ prb\ (noun) Caliper \ ka-l -p r\ (noun)
Attachment \ - tach-m nt\ (noun) Micrometer \m- kr-m -t r\ (noun)
Zero \ z-( )r\ 0, 1, 2, 3, 4 Slide 15 Vocabulary Dial \ d(- )l\
(noun) dial indicator Indicator \ in-d - k-t r\ (noun) indicate (v)
Specialized (adj) special, specialize \ spe-sh - lz\(v) Rigid \
ri-j d\ (adj) rigidity Ruler \ r-l r\ (noun) Slide 16 Vocabulary
Accuracy \ a-ky -r -s\ (noun) accurate (adj) Scale \ skl\ (noun)
Height \ ht\ (noun) Metric \ me-trik\ (adj) Precision \pri- si-zh
n\ (noun), precise \pri- ss\ (adj) Slide 17 Now Ask your teacher or
classmates about any words you dont understand. Finish the
assignments and quizzes for this lesson. Unless otherwise
specified, this work by Air Washington is licensed under a Creative
Commons Attribution 3.0 United States License.Air
WashingtonCreative Commons Attribution 3.0 United States
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