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Engr 103, Computer Aided Drafting and
Engineering Graphics (3 credits)
Department of Physics and Engineering
Fort Lewis College
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Course Objectives:
To develop the
ability to effectively communicate design ideas and technical information.
To achieve this the course will provide students with an introduction to
engineering technical graphics and its relationship to the design
process. Three dimensional visualization
and CAD modeling is emphasized. Proficiency
with industry standard CAD software is stressed. The ability to read and
create technical drawings are valuable skills covered in this course.
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Instructors:
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Don May, PE, PhD.
Department
of Physics and Engineering
Rm
633 BH
970-247-7545
may_d@fortlewis.edu
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Laurie Williams, PE, PhD.
Department
of Physics and Engineering
Rm
601 BH
970-247-7160
williams_l@fortlewis.edu
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Homework Assignment
Instructions
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Prepare
for drawing exam 1:
Ex. 1 (print scale 1:1) Draw the 2D object in
the units specified, draw a rectangular border and print in either
landscape or portrait mode (choose the most appropriate). Be sure your name, section number,
drawing title, units, and scale are included in the title block.
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On the
handout provided, sketch the front, top, and right views of the objects
shown. Please note the specified front
view – the top and right view should be determined based on this
orientation.
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Prepare
for drawing exam 2:
Ex 2, Ex 4, Ex 5, and Ex 6. Reproduce the drawings. Create a separate layer for the centerlines. Create a layer for your title block (must
include your name, section number, drawing title, units, and scale) and
print from layout space. Use the following print scales: Ex2 1:1, Ex4 1:1,
Ex5 1:1, Ex6 1:2.
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Prepare for drawing exam 3:
a) Ex 7 and Ex 12. Draw the front, top and right view of
each the 3D model, add dimensions using appropriate dimensioning
techniques, print with an appropriate border in layout space. Use a print
scale of 1:1 for both drawings. NOTE: Ex 7 all fillets and rounds are 0.25
inches.
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b)
Measure and draw an object. The Master padlock shown here can be found cabled to the
box where you turn in your homework in the back of the computer lab BH570.
With a ruler, make the necessary measurements, in millimeters, to
accurately draw the object. Estimate to the nearest ½ millimeter. Orient
the padlock so that the side with the word Master on it is the front
view. Create a cabinet oblique
sketch of the object and fully dimension the sketch as needed to create a
CAD drawing from the sketch. Create a CAD drawing of the three primary
orthographic projections. Add
dimensions using appropriate dimensioning techniques, print with an
appropriate border in layout space. Use a scale of 3:1. Turn in both the
sketch and a printed copy of the CAD drawing in your homework folders.
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Prepare for drawing exam 4:
Ex 4, Ex A, Ex C, Ex D. Draw each object as a 3D
wireframe model. Use one grid interval equals 1 inch when dimensions are
not given. View the object in SE isometric and edit the wireframe so that
the object appears as a 3D model with hidden lines removed. Print the SE isometric view with an
appropriate border in layout space. Complete cabinet oblique sketches of Ex
4a, Ex A, and Ex C.
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Prepare
for drawing exam 5:
Ex 13, Ex 14, and Ex 15. Draw the objects as 3D solid
models (using solid modeling techniques, not wireframe drawing). Print the SE isometric view (Visual style
= 3D hidden) with an appropriate border in layout space. Complete a cabinet
oblique sketch of Exercise 13.
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Prepare for drawing exam 6:
Ex 16. Draw the object as a 3D
solid model. Create the front and top orthographic view and one full section view of your choice. Choose the best orthographic view as the front. Your final drawing should include the two
orthographic views, one section view, and the 3D
isometric. Dimension the orthographic projections.
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3D-Ch
11, (Ex 1) Create a full set of working drawings (detail and assembled) –
Printed drawings should include orthographic views (think best and
necessary) of each of the component parts - one view should be a section
view, with the necessary dimensions.
Display the assembled 3D object as a SW isometric view with hidden
lines removed.
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