1. Tolerances Introduction to Engineering Design
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2. Click on the Link Below:
What is Tolerance?
Now, in your own words, answer these questions and turn in for a grade:
When manufacturing items in a factory, can every part be completely, exactly, the same size every time?
How do engineers overcome this limitation of factories? (starts with a T)
Write this sentence with the correct words: Tolerances are expressed as the m__ allowable and the m_ allowable, and everything in between.

3. Presentation Name
Course Name
Unit # – Lesson #.# – Lesson Name
Definitions
Tolerance is the total variance in a dimension and is equal to the difference between the upper and lower limits.
Tolerance = Upper Limit – Lower Limit
0.10 = 1.55 – 1.45
If a part is manufactured outside of the limits established by the tolerance, the part is said to be “out of tolerance”.

4. Definitions
Limits are the maximum and minimum sizes shown by the toleranced dimension
Upper limit is the maximum allowable dimension
Lower limit is the minimum allowable dimension
Upper Limit = Specified Dimension + positive variance
1.55 =
Lower Limit = Specified Dimension + negative variance
1.45 = (– 0.05)

5. Tolerances
Click on This Link
Read the material
Answer the question
Reveal the Answer
Go to page 2
Answer 2 questions
Reveal the answer
Move on to the Test
Show Mrs. Booher your score

6. Presentation Name
Course Name
Unit # – Lesson #.# – Lesson Name
Out of Tolerance
A manufactured part is said to be out of tolerance if the part is not within specified limits
Manufacturing facilities often institute quality control measures to help ensure that parts are within tolerance

7. What is the Tolerance of this part?
Presentation Name
Course Name
Unit # – Lesson #.# – Lesson Name
Question #4
For the part below, state the lowest acceptable length and the highest acceptable length.
What is the Tolerance of this part?