Sketch

Report
Teams consist of the following
members: (actual number of
personnel will be determined by the
number of team members – varies by
class)
Project Leader
Engineer
Logistics
Scientist
1 person
1 or 2 or 3 people
1 person
1 or 2 people
All builds must meet all the
requirements to be considered
completed. Builds not meeting
all the requirements will lose
construction points. The
mechanism is to be built entirely
from VEX parts provided in the
lab unless otherwise noted.
Builds are:
Pull Toy
Windmill
2 / 4wd Vehicle
Solar Collection Dish
Black
Red
Yellow
Blue
Build Storage Area
Column by Row
Build Storage Area
(Column by Row)
Area Assignments
Row 1
Row 2
Row 3
Row 4
Column A
Column B
Column C
Column D
Column E
P1 –
Team 1
P2 –
Team 2
P3 –
Team 3
P4 –
Team 4
P1 –
Team 2
P2 –
Team 3
P3 –
Team 4
P5 –
Team 1
P1 –
Team 3
P2 –
Team 4
P4 –
Team 1
P5 –
Team 2
P1 –
Team 4
P3 –
Team 1
P4 –
Team 2
P5 –
Team 3
P2 –
Team 1
P3 –
Team 2
P4 –
Team 3
P5 –
Team 4
Pull Toy
Introduction
A pull-toy is pulled along the
ground and a movement is
produced, such as a head nods, a
tail wags or a figure bobs up and
down. The pull-toys use
mechanisms to transfer energy
from the wheels to the characters
that define them.
Pull Toy
Procedure
With your knowledge of mechanisms, you and your partners will use the design process to
design and build a mechanism or series of mechanisms that will meet the following
criteria:
Sketch:
In your engineering notebook (in blue or black ink), sketch what your first solution should
look like. Label the input and output and present your sketch to your instructor before you
begin building.
Model:
Construct a 3D model in Autodesk Inventor 2014 of your proposed item.
Prototype:
Construct a prototype using the parts that are available in a VEX Robotics Kit.
The mechanism is to be built on a small 4 wheel chassis capable of being pulled across a
table-top surface, the movement of the wheels will make the toy move.
A gear mechanism attached to the wheels will make another part of the pull toy move.
An illustration should be added to the output of the mechanism so as to simulate the toy.
Windmill Design
Introduction
As you know from your
science class or Energy and
the Environment unit, a
windmill converts wind
energy to a useful
mechanical energy. One realworld use of a windmill is to
grind grain into flour. The
rotary movement of the sail,
turned by the wind, is
changed by 90º. The sail
(blades) have to be able to be
moved to face the wind
direction.
Windmill
Procedure
Using your knowledge of the mechanisms recently built in class, design and build a
windmill to grind grain into flour. The situation requires a change in direction of motion by
90º and may require a different input/output speed relationship. The structure you build
will need to incorporate a mechanism to change the direction of the windmill blades and
extra points if the input/output speed relationship can be changed. Your structure must be
stable, rigid, and must hold the gears in proper relationship to each other.
Sketch:
With your knowledge of mechanisms, you and your partners will use the design process to
design and build a mechanism or series of mechanisms that will meet the above criteria.
In your engineering notebook (in blue or black ink), sketch what your first solution should
look like. Label the input and output and present your sketch to your instructor before you
begin building.
Model:
Construct a 3D model in Autodesk Inventor 2014 of your proposed item.
Prototype:
Construct a prototype using the parts that are available in a VEX Robotics Kit. The item
must meet all the requirements to be considered completed. Items not meeting all the
requirements will lose construction points.
Survival Challenge
Introduction
The year is 2201. The earth as we know it no longer exists. Civilization has destroyed
itself through nuclear wars, pollution, and lack of respect for the environment. The
human race has all but ceased to exist.
A group of multi-cultural scientists, doctors, and engineers have survived by living in
a biosphere for the last 20 years. As they emerge from their protected sphere, they
find the earth totally destroyed. They need to rebuild the earth and civilization. They
will have to rebuild using only recycled materials that can be scavenged from the
countryside.
You are one of the engineers assigned to complete one of the tasks. Your team’s job
is to create mechanical machines that will help the scientists and doctors rebuild the
earth.
Task 1: 2 / 4wd Vehicle
Activity:
The scientists and doctors need a vehicle that will take them over the rough terrain to
search for other survivors and to collect data.
Requirements:
• Needs to travel over rough terrain.
• Needs to have a differential drive shaft or universal joint.
• Must be able to switch from two-wheel drive to four-wheel drive.
Sketch:
In your engineering notebook (in blue or black ink), sketch what your first solution should
look like. Label the input and output and present your sketch to your instructor before you
begin building.
Model:
Construct a 3D model in Autodesk Inventor 2014 of your proposed item.
Prototype:
Construct a prototype using the parts that are available in a VEX Robotics Kit. The item
must meet all the requirements to be considered completed. Items not meeting all the
requirements will lose construction points.
Task 2: Solar Collection Dish
Activity:
The scientists need a machine that will rotate a solar collection dish from inside their labs.
The machine must be located outside the building and around the corner.
Requirements:
• Needs to have a minimum gear ratio of 1:5.
• Must be located around a corner.
• Needs to be angled toward the sun.
• Must be able to follow the sun.
Sketch:
In your engineering notebook (in blue or black ink), sketch what your first solution should
look like. Label the input and output and present your sketch to your instructor before you
begin building.
Model:
Construct a 3D model in Autodesk Inventor 2014 of your proposed item.
Prototype:
Construct a prototype using the parts that are available in a VEX Robotics Kit. The item
must meet all the requirements to be considered completed. Items not meeting all the
requirements will lose construction points.

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