Transcript No Slide Title

Train Body
The next series of slides will guide you
through the construction of the train body.
Start a new drawing and save it as Train Body.
Now that we have reviewed
the sketch, constraining,
dimensioning, and extrusion
process, let’s create the base
feature of the train body.
Refer to the IED
Resource Guide for
the dimensions.
Pick View,
Toolbar, Sketch
to activate the
Sketching tools.
Pick Line.
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Current polar angle
of sketch line from
0,0
Pick this intersection
and drag up.
Current length of
sketch line
User hints
are given here.
Current X,Y
coordinates of cursor
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Sketch 3 lines
Select 3 point Arc from
the Sketch toolbar and
pick start of Arc here.
Drag up to the right
and pick another
point. Right click
and pick Done.
Select End of
Arc here.
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We will now dimension
the rough profile using
the General Dimension tool.
When a dimension
needs changing,
double click it to
bring up the Dim
edit box.
Key in the
correct size and
press Enter.
Pick here.
Pick this line, then drag
down and pick another
point to place the dimension.
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This sketch is fully dimensioned. Any
additional dimensions will result in the
error message below.
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Right click the drawing
screen and pick
Isometric View.
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Pick View
and launch
the Features
Toolbar.
Pick Extrude.
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Key in distance.
Select the
direction of
Extrusion and
pick OK.
Extrusion Preview
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The base feature has successfully
been extruded and displayed
in Shaded mode. The next slide
will demo two other display modes
that may be useful in the future.
Now would be a good
time to save.
Saving your work should
be done after any major
feature addition has
been completed!
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Now we will apply a cut
extrusion on the front end
of the train body.
Pick Sketch,
then pick this end
of the extrusion.
Notice the dark
outline on the end of
the extrusion. This is visual
feedback that signifies a
sketching surface is ready.
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Pick Rectangle.
Pick about here
first,
then drag to
about here and
pick a point, right click
and pick Done.
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Pick Extrude from the
Features toolbar, then pick
this rectangle.
In the next slide we will
adjust the size and type
of extrusion.
Only one
dimension is
needed
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First,
set the distance.
Third,
set the Extrusion
type to Cut and pick OK.
Second,
select the direction.
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We will now build the
tank on the front of the
train body. Pick Sketch.
Now, pick this face.
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Use the Rotate View
function to maneuver
train body for clarity.
When the viewing direction
is satisfactory, right click and
pick Done.
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Sketch a circle
approximately in this
position, then dimension
its diameter and X,Y location
as illustrated to the right.
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Extent of extrusion
is set at To.
Select this surface
to end the extrusion
and pick OK.
Set extrusion type
to Join.
Save your work
after extruding!
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Now we will drill the axle
holes and extrude cut the cab.
Pick Sketch and select the
long side of the train body.
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For some sketch situations,
it is helpful to look directly
at the surface. We will
do that now. Pick the
Look At icon, and then pick
the long surface of the
train body.
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Sketch a circle and
lines about here, trim
and dimension as
illustrated below. This
will serve as the cutting
profile.
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Adjust settings in the Extrude
dialog box as shown below.
Then pick OK.
Rotate the view
and Cut Extrude
the profile.
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To improve clarity,
the color, viewing angle,
and display type have
been changed.
Now it’s time to locate
the center points for the
axle holes.
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Next,
use Point, Hole Center
to locate position of holes.
First,
assign a sketch plane
to this surface.
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When finished marking the
centers, right click and pick
Done.
Pick approximate location
for each hole. In the next
slide we will place dimensions.
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Initial dimensions
are red, double click
to adjust values.
Use the General Dimensioning
tool to precisely locate
the hole centers.
Key in correct value and
press Enter or pick
green check mark.
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Pick the Hole function from
the Features toolbar.
Adjust the settings as
indicated by arrows
below and pick OK.
Save your work!
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In the next few slides, we will add the smoke
stack to the top of the tank. Since there is no
flat sketching surface on the tank, we first must
place a work plane tangent to the tank and then
offset it from the top surface of the cylinder.
Switch to the isometric view.
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Pick Work Plane
from the Features
Toolbar.
Next,
pick the cylinder.
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Move the cursor along
the cylinder until this
workplane is previewed,
then pick that plane to
produce the workplane as
pictured on the right.
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We now will create an offset workplane from the original workplane.
Select the Workplane icon from the Features toolbar.
First,
pick this workplane
and drag up.
Next,
key in the offset value
of 1 and press Enter.
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The result is two work planes. We will now turn off the plane
on the bottom by selecting it from the browser.
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In the Browser, left
click on the
Work Plane name,
then right click to
produce the visibility
prompt below
Left click on
Visibility, the result
is shown on the
right.
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Switch to Top View
of the tank using the
Look At function.
Pick this edge.
Pick Sketch, then
pick the edge of the
work plane.
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Sketch and dimension
this circle.
After sketching,
switch to the isometric
view.
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Pick Extrude from the Features
toolbar and set the parameters
as shown below. Pick OK
when done.
The first tapered extrusion
is done. Next, we will
apply the tapered cap on
top of the smoke stack.
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In the Isometric
view, select top of
stack as sketch plane
and sketch this circle.
Next, constrain it with
Concentric and
Same radius constraints.
Pick here to
launch constraint
toolbar.
Same
constraint
Concentric
constraint
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Results of Concentric and
Same radius constraints.
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Pick Extrude from the Features
toolbar and set up the parameters,
as shown on the right. Pick OK
when done.
Now would be a
good time to save!
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From the Features toolbar,
pick the Fillet icon.
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Use the Loop option when applying fillets
around a face. It is much faster than single
edge picking. To fillet the intersection of
2 or more surfaces, use the Edge select mode.
Key in a value
of 0.100.
Pick edge to identify the
first loop, then pick OK.
Rotate model and repeat as
needed.
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Completed Train Body
Save your work!
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Index
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Wheel
The next series of slides will guide you through
the construction of the train wheel.
Start a new drawing and save it as Wheel.
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For units in inches,
pick English.
Pick Standard (in).ipt,
then pick OK.
The .ipt file extension
is used for single Inventor
part files.
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Save this startup sheet
as Wheel.
Enter filename
and pick Save.
Pick here to
maximize the
drawing space.
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Pick View,
Toolbar, Sketch
to activate the
Sketching tools.
Sketch this figure and
apply dimensions as in the
figure to the right.
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Switch to the
Isometric View.
Pick Revolve.
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You must first
pick a line on the
profile that will
serve as the
centerline of rotation.
Set Extents to Full
and pick OK.
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Pick Sketch,
then pick surface
indicated below.
Pick this icon to mark the
center for the axle hole.
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Adjust the settings as
indicated by arrows
Below, and pick OK.
SAVE YOUR WORK!
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The next group will demonstrate how to add the link pin post.
Select the lower
surface for the
Sketch plane.
Use the Look At
function to view
straight on.
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Sketch and dimension
this circle, then switch to
the Isometric View.
Activate Extrude
and pick this profile.
Set up the dialog box
using the values on
the left and pick OK.
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Set the Sketch plane to
the top of the peg and
sketch and dimension
as given on the right.
Make sure to apply a
concentric constraint.
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Set up dialog box as
indicated above and
pick OK.
The last operation on the wheel
will be to drill a hole here for
the link pin fastener.
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Set the Sketch
plane to the end
of the pin.
Locate the hole
center here.
Use this function to
place the hole center.
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Adjust settings as
above and pick
OK.
Save your work!
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Adding a Work Axis
We first have to put
hole centers in both
holes on the correct
sketch plane.
First,
pick Sketch.
Pick the inner
circular edge for
the sketch plane.
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Pick Hole Center.
Then pick this
Intersection.
This is a Zoomed
view of the center
mark.
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Launch the
Features toolbar
from the View menu.
Pick
Work Axis.
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First,
pick the center.
Save your work!
Next,
pick this circular edge.
A vertical axis should
appear. Later, we will
use this axis to animate
the wheel linkages.
Index
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Axle Peg
The next series of slides will guide you
through the construction of the axle peg.
Start a new drawing and save it as Peg.
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Adjust settings in the
Extrude dialog box as
shown below. Then pick OK.
Sketch and
dimension a circle.
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Now we will put a cap on the tapered peg. To do this, a sketch plane
on the YZ axis going through the center of the peg must be applied.
Follow the steps below.
Pick the plus
sign to expand
the origin.
Then pick here.
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Pick Sketch.
Rotate view until
this axis is near
horizontal.
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Sketch and dimension
the figure on the right.
Sketch two lines,
then use 3 point arc.
Dimension as shown.
Finally, use the Revolve
function to complete the cap.
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Pick this line as
Centerline of
rotation.
Set Extents to Full
and pick OK.
Save your work!
Index
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Linkage Arm
The next series of slides will guide you through the
construction of the linkage arm. We will make use of the
adaptive sketch and adaptive extrusion functions.
Start a new drawing and save it as Linkage Arm.
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Sketch this figure.
Trim until it looks like
this on both ends.
Apply dimensions as given
on the left, and switch to the
Isometric View. The distance
between the arcs is not needed,
as this will be left free to Adapt
to the assembly in a later step.
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Set the dialog box
values as given on the left
and pick OK.
Place Hole
Centers as shown
in preparation for
drilling holes.
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Adjust the settings shown
in the dialog box and pick OK.
The next slide will demonstrate how to make the link
adapt to the changing needs of an assembly.
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Right click Extrusion1 in
the Browser.
Select Adaptive, then
observe the Adaptive
symbol
next to Extrusion1 in the
Browser.
Save Your Work!
When you Right click
Extrusion1 in the Browser,
then pick Properties. You
will get the dialog box below.
Remember, any
undimensioned sketch
geometry such as length,
diameter, and extrusion
thickness, can be made
adaptive to meet
assembly constraints.
Index
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Link Pin
The next series of slides will guide you through
the construction of the link pin.
Start a new drawing and save it as Link Pin.
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Second,
switch to the Isometric View
and Zoom in as needed.
First, sketch and
dimension this circle.
Finally,
pick Extrude and
change the values
as given in the dialog
box on the right.
Then pick OK.
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Now we will put a cap on the tapered peg. To do this, a sketch plane
on the YZ axis going through the center of the peg must be applied.
Follow the steps below.
Pick the plus
sign to expand
the origin.
Then pick here.
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Pick Sketch.
Rotate view until
this axis is near
horizontal.
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Sketch and dimension
the figure on the right.
Sketch two lines,
then use 3 point arc.
Dimension as shown.
Finally, use the Revolve
function to complete the cap.
See how in the next slide.
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Pick this line as
Centerline of
rotation.
Set Extents to Full
and pick OK.
Index
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Close up Orthographic
views follow this image.
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Top View
Curved Track
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Top View
Curved Track
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Front View
Curved Track
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Close up Orthographic
views follow this image.
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Top View
Straight Track
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Top View
Straight Track
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Front View
Straight Track
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