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1. Hands-On Exercise – Bracket
Page 1 of 14
Goals:
1. Capture symmetry of the whole part
to simplify the design process.
2. Identify when the Tangent Arc tool
can be used to create rounded
geometry.
3. Understand an alternative method of
designing the part that still utilizes
symmetry.

2. Hands-On Exercise – Bracket
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Instructions:
1. Begin a new part file using the
Standard (in).ipt template and start a
new sketch on the XY Plane.
2. Sketch and dimension the profile
shown below. (Hint: Note the location of
the origin).

3. Hands-On Exercise – Bracket
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Instructions: (continued)
3. Extrude the sketch to a Blind Depth
of 0.25 inches.

4. Hands-On Exercise – Bracket
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Instructions: (continued)
4. Use the Hole command to create a cut
on the face of the extrude just
created.
a. Make sure the hole is countersunk
with the dimensions shown here, and
make sure the termination is Through
All.
b. Change the Placement from Linear
to Concentric and select the face for
the cut.
c. With the Concentric Reference icon
selected, select the arc to center the
hole.

5. Hands-On Exercise – Bracket
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Instructions: (continued)
5. Sketch a rectangle on the front face
with the dimensions shown below.
a. Use a centerline to center the
rectangle on the width of the part.

6. Hands-On Exercise – Bracket
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Instructions: (continued)
6. Extrude the sketch to a depth of 0.5
inches.

7. Hands-On Exercise – Bracket
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Instructions: (continued)
7. Start a sketch on the top face of the
tombstone to create the rounded
portion of the tombstone shape.
8. Use a tangent arc to create the
rounded shape.

8. Hands-On Exercise – Bracket
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Instructions: (continued)
9. Create the extrude using the “To” end
condition and select the bottom edge
of the block.

9. Hands-On Exercise – Bracket
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Instructions: (continued)
10. Use the Hole command to create a hold on the top face of the
tombstone.
a. The hole is counterbored with a larger diameter of 0.44 inches,
the depth set to 0.25 inches, and the through diameter set to 0.27
inches.

10. Hands-On Exercise – Bracket
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Instructions: (continued)
10. (continued)
b. Change the Placement to Concentric
and select the face for the cut.
c. With the Concentric Reference icon
pressed, select the arc to center the hole.
Make sure to use the “To” end condition
and select the bottom edge of the
tombstone.

11. Hands-On Exercise – Bracket
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Instructions: (continued)
11. Use the Mirror Feature to create the rest of
the model.
a. Select the Mirror Solid icon, and use the
bottom face of the body as the mirror
reference.

12. Hands-On Exercise – Bracket
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Self-Check:
1. Design Intent: Let’s check to make sure the design intent of mirroring
the part about an axis was achieved. Expand the Solid Bodies folder in
the Browser, then right click on the body in the and select Properties.
Click the Update button. Is the Y-component of the center of mass 0.000
inches?
• If so, Good job!
• If not, double check the placement of the origin of the first sketch.

13. Hands-On Exercise – Bracket
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Additional Practice
As with most designs, there are multiple
approaches that can be taken to create this part. If
you needed only some of the features to be
mirrored across the body, the first approach may
not be the best method. For additional practice, try
making this part with only one instance of the
countersunk hole by incorporating symmetry from
the very beginning, starting with the extrude
shown.

14. Hands-On Exercise – Bracket
Page 14 of 14
Additional Practice: (continued)
• Create the countersunk hole, the
tombstone, and the counter bored
hole.
• Mirror the tombstone and the
counter bored hole across the body
using the XZ Plane as a reference
and check your model with the
image shown below.