Department of Mechanical Engineering
University of California, Berkeley
Engineering 27, Fall 2016: Introduction to Manufacturing and Tolerancing
Laboratory 5: Dimensional measurements of components
Measuring the physical dimensions of manufactured parts i
Department of Mechanical Engineering
University of California, Berkeley
Engineering 27, Fall 2016: Introduction to Manufacturing and Tolerancing
Laboratory 5: Dimensional measurements of components
Measuring the physical dimensions of manufactured parts i
Department of Mechanical Engineering
University of California, Berkeley
Engineering 27, Fall 2016: Introduction to Manufacturing and Tolerancing
Laboratory 1: Reverse-engineering of manufactured products
Your lab 0 report was your pre-lab task for this la
University of California, Berkeley
Department of Mechanical Engineering
E 27 Introduction to Manufacturing and Tolerancing
Fall 2016
Homework 1
Subtractive manufacturing processes
Due: Wednesday Sept 21, 11.59pm on bCourses as a pdf (fine to handwrite & s
Engineering 25
University of California, Berkeley
Fall Semester 2016
Homework Set #5
For the objects shown in Lieu & Sorby, Chapter 8, Problem 6 (Figure P8.6) parts (g), (f),
(j), (m), (y), and (ff), create correctly scaled multiview orthogonal drawings i
Department of Mechanical Engineering
University of California, Berkeley
Engineering 27, Fall 2016: Introduction to Manufacturing and Tolerancing
Laboratory 4: Stirling engine flywheel redesign for enhanced manufacturability
Pre-lab
A flywheel, such as tha
bCoursesNotificationTips
Some of the default options for bCourses notifications might not be the best choice for you. For example, the Jacobs
Maker Pass course may send you email immediately every time new training slots are added to their system. If
youd
Math 54 Worksheet 8
1. Write down three distinct bases of P2 (note: order matters!). Now write down
three bases of P2 where no two of the bases contain the same vector.
The first part is silly: take for the first basis v1 = 1, v2 = t, v3 = t2 , for the se
Math 54 Worksheet 9
1 0
1. Find the eigenvalues and eigenvectors of the matrix A =
. Show that two
1 0
eigenvectors of A corresponding to distinct eigenvalues form a basis for R2 . What is the
matrix of A with respect to this basis?
The characteristic pol
Math 54, Worksheet 3
1. Subspaces of R2 :
(a) Let v1 , v2 R2 be column vectors. Show that Spancfw_v1 , v2 = R2 if and only if
v1 , v2 are linearly
independent.
a1
b
Write v1 =
, v2 = 1 . These vectors span if and only if we can write
a2
b2
c
R2 as
Math 54, Worksheet 4
1. Consider the following (homogeneous) linear system of equations:
x1 + 2x2 3x3 = 0
2x1 + x2 3x3 = 0
x1 + x2
= 0
(a) Find the matrix A so that the above linear system is equivalent to Ax = 0, where
x R3 .
1 2 3
A = 2 1 3
1 1 0
(b) Wr
Math 54 Worksheet 5
1
0
2
1. Consider the three vectors v1 = 2 , v2 = 3, and v3 = 5 in R3 .
2
4
16
3
Determine if they span R by row reducing a certain matrix. The determine if they are
linearly independent. If they are linearly dependent, find a depe
University of California, Berkeley
Department of Mechanical Engineering
E27 Introduction to Manufacturing and Tolerancing
Spring 2015
Final Examination
May 14, 2015
SOLUTIONS
Instructions
1. Please do not open this exam paper until invited to do so.
2. Th
University of California, Berkeley
Department of Mechanical Engineering
E27 Introduction to Manufacturing and Tolerancing
Spring 2015
Midterm quiz
March 11, 2015
SOLUTIONS
Instructions
1. Please do not open this quiz paper until invited to do so.
2. This
University of California, Berkeley
Department of Mechanical Engineering
E27 Introduction to Manufacturing and Tolerancing
Fall 2015
Final Examination
December 17, 2015
SOLUTIONS
Instructions
1.
2.
3.
4.
5.
6.
Please do not open this exam paper until invit
University of California, Berkeley
Department of Mechanical Engineering
E27 Introduction to Manufacturing and Tolerancing
Fall 2015
Take-home midterm assignment
Issued October 18, 2015. Due Wednesday October 28, 2015 at 11:59pm on bCourses
You are welcome
Fold lines
Projection line
Lines that are parallel in 3D will always appear parallel in
projected views.
Be aware of the two edge cases below, where the lines can
project as a single line or as a pair of points. Eg, consider
projecting a rectangul
Group Project Portion of HW10
E25, Prof. McMains
Read Chapter 5 before your project group meeting, with particular emphasis on the material on
brainstorming, brainwriting, problem identification, and concept generation, and the other
techniques covered on
Did you print out the practice exam,
sit down and take it, timing yourself,
as if for the real thing? (Preferably
without looking at the problems
ahead of time so the timing is
accurate.)
If not, it is probably
counterproductive to look at these
solutions
Engineering 25
Midterm Review
Today
A walk through lectures 1 6
Sample questions
Exam tips
Open questions
Lecture 1
y
Isometric: Iso = Equal, Metric = measure
z
Each axis at 120 deg
Isometric sketch all axes at 120deg.
Coded plans:
Coded plans Measure
IMPORTANT
Besuretoprintout(atleast)thedrawing
questionsandsitdownandtimeyourself on both
partsasifyouweretakinganactualmidterm.
Ifyouhaveanyconcernsatallaboutyourspeed,
trytimingyourselfoneachindividualquestionand
notingwhichonestakeupthemosttime.
E 25, S
1) (5 pts) For the given TOP view, circle all of the following that could be the
corresponding section view. (Circle ALL that could correspond)
(a)
(b)
(c)
(d)
(e)
2) (4 pts)
The multi-view drawing above shows a top and front view. Which choice belo
SID 50W 0"
1.) (5 pts)
Statements a-e refer to the ﬁgure below. For each statement, circle T if the statement is true for this ﬁgure, F if the statement is
false for this ﬁgure.
T F a.) The visibility of line AC in view plane F is correct.
F b.) The v
Name _ SID _
Lab Day _
Closed Book Examination (1 3x5 card of handwritten notes allowed)
Pencils, eraser, straight-edge (ruler) allowed. No compasses, protractors, or other tools.
No calculators, no cell phones.
Engineering 25
Sample Examination
Time Li
Relevant sample problems from previous exams (no solutions available)
The object shown below the front and right side view of an ANSI 1040 steel stud. Create an isometric
view of the part and add a top view to the drawing in its correct location, scale an
\
E 28, Midterm Examination #1, part 1, Spring 2008 Name @LWXDNS V L.
2) (21 points)
The ﬁgure below shows the front and top views of a part (standard 3rd angle projection, orthographic multi-view). A grid is also
shown
0/ Sketch the corresponding full