Lecture 16 - AutoCAD 1 Fundamentals of Engineering – Honors – ENGR H191 Question of the Day Who created the first practical light bulb? ANSWER: Joseph Swan, an Englishman, created the first practical light bulb in 1878 Thomas Edison perfected and marketed the design a year later
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Fundamentals of Engineering – Honors – ENGR H191 Lecture 16 - AutoCAD1 Question of the Day Who created the first practical light bulb? ANSWER: Joseph.
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Lecture 16 - AutoCAD 1
Fundamentals of Engineering – Honors – ENGR H191
Question of the Day
Who created the first practical light bulb?
ANSWER: Joseph Swan, an Englishman,
created the first practical light bulb in 1878
Thomas Edison perfected and marketed the design a year later
Lecture 16 - AutoCAD 2
Fundamentals of Engineering – Honors – ENGR H191
Dimensioning
GoalsUnderstand the principles of good dimensioning practiceApply the standard dimensioning practices for engineering drawings
ReferenceBTG Chapter 7
– Dimensions and Tolerances
Lecture 16 - AutoCAD 3
Fundamentals of Engineering – Honors – ENGR H191
Geometrics
The science of specifying and tolerancing shapes and locations of features of on objects
Lecture 16 - AutoCAD 4
Fundamentals of Engineering – Honors – ENGR H191
Geometrics
It is important that all persons reading a drawing interpret it exactly the same way.Parts are dimensioned based on two criteria: Basic size and locations of the features Details of construction for
manufacturingStandards from ANSI (American National Standards Institute)
Lecture 16 - AutoCAD 5
Fundamentals of Engineering – Honors – ENGR H191
Scaling vs. Dimensioning
Drawings can be a different scales, but dimensions are ALWAYS at full scale.