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10 COOL 100 YOU

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by

Darin Gray

on 30 June 2016

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Transcript of 10 COOL 100 YOU

10 COOL 100 YOU
Week 10
WEEK 10
During this week we built bridges and vex cars applying the fundamental skills of
CIVIL
and
MECHANICAL ENGINEERING.
Principles:
The Pythagorean Theorem
Law of Sines/Cosines
Vector Analysis
Proportions
Stress/Strain

MINI TUBE CAR

Created a
mini car
out of cups, motors, sticks and paper towel rolls.
Cut the tubes into the indicated lengths and placed paper cups in both ends.
We then taped a paper circle over each side to make wheels.
Attached the wheels using rubber bands to motors.
These motors were connected to
a switch

forward

or

backward
, allowing the car to travel forward, backward, or turn.

Bridge Design (Used Bridge Builder Simulation)
We had several bridge design concepts, but in the end, we settled for this one because we noticed it was sturdy and didn't use up too many materials:
Some of the Initial Designs:
Vex Car
Our design for the Vex Car remained fairly constant: Build the car
around
the bricks. Tried to limit the weight and size as well.

Concept
The bridge works by dividing the stress of the materials on the bridge through usage of the triangular structure and a strong support along the bottom.
Improvements:
We could have increased productivity and results by:
Splitting the work up more evenly.
Being more careful while reading the instructions
Making Paola stay two more days
THANKS FOR LISTENING
Roles:
Andrew

Michelle

Rahul

Kevin

Paola
- Prezi
- Bridge Design - Bridge Construction
- Card Bridge - Scale Model

- Prezi
- Bridge Design - Bridge Construction
- Tube Car - Scale Diagram Drawing
- Scale Model

- Prezi - Scale Model
- Bridge Design - Vex Car
- Tube Car - Bridge Construction

- Prezi
- Bridge Design - Vex Car
- Card Bridge - Scale Model

- Prezi
- Tube Car - Bridge Design
[ Absent Wednesday-Thursday]
Scale Model
We exchanged our bridge diagram with another group. We then built their bridge and it was fabulous and ours was fabulous as well.
Successes and Obstacles
Successes:
Building the bridge.
The car.
Making both work at the same time
Obstacles:
Designing bridge
Programming/connecting the robot to the remote control
Start differently by:
Assigning roles to each person for organization and efficiency
Planning out which tasks will be completed and when
Keeping workspace organized
Lessons learned
Importance of the arcs and supporters across the bottom.
Design bridge and work on car in parallel for maximum efficiency and figuring out dimensions
Teamwork/Collaboration
There are many other factors out of the structure that can make a bridge collapse
Building the Mini Tube Car
Initially our car could not turn. Because we had not connected our wires correctly, one of the wheels did not change direction when we flipped the switch.
Finally we got it to work...
Finished Car:
We started out by each making our own designs, and then comparing them and discussing what was each designs strengths and weaknesses.
sparkle:
We could test our designs on the west point bridge simulator to help get a sense of the bridges stability. We could also find out what parts of the bridge were receiving the most stress and compensate for that by making certain beams thicker.
This is a sketch of our initial design that we gave to another group to make our model

We take building bridges very seriously.
It was snapchat worthy
We used the least amount of material possible when building the car in order to minimize it's weight.
At first our car decided to be the dancing queen
The Bridge:
We also had to construct the bridge that our car would travel over with three bricks. Our bridge was a larger exact replication of our original model/design.
Building the Bridge
Specifics:
Added crisscrossing supports on the bottom
Triangular supports
(
Red
+
Red
+
Motor2
)
(
Black
+
Black
+
Motor2
)
(
Red
+
Black
+
Motor2
)
(
Red
+
Black
+
Motor2
)
Mistake
Correction
Group 3 is my favorite
I miss sparkle
Team Sparkle
Team Sparkle
Analysis:
Problems:
upper structure too flimsy
too tall
not enough right triangles
pillars were unbalanced
wheels on car bent outward
Card Bridge
We Built a bridge with several 3x5 index cards, using the instructions in the lab book. It turned out to be really sturdy.
Our bridge was able to hold all of these nuts!
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