Final Presentation

On June 17th 2010, Team A+ members completed their final presentation in front a group which included professors and fellow classmates. Team A+ came very close to completing all of the goals they had set for themselves at the beginning of the semester. Their tasks were to assemble the electric motorcycle, and tear down and refurbish Galileo to reassemble it in Guelph.

Fine tuning the E-Bike throttle

Despite the shortened semester, the team successfully assembled and tested a crude prototype of the E-bike. At the same time they managed to disassemble and refurbish Galileo while making a few revisions to the turntable mechanism, and package the entire structure for delivery to Guelph. An instruction booklet combined with the intuitive design of the tower should make it a simple matter for any volunteers in Guelph to reassemble the structure.

Testing the Galileo turntable

Like every Green Corridor group, Team A+ faced many obstacles during the semester, but they worked together to overcome them. Team A+ put together an extensive legacy report highlighting all of their achievements, while offering suggestions for future students who may want to continue on with the projects. Team A+ gave an A+ effort from start to finish. The group enjoyed the Green Corridor course very much. It truly was a unique learning experience.

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Finishing Touches

Once again, Team A+ members split up to complete the many projects they had taken on.  The first group worked on Galileo, preparing the tower pieces for repainting.  While two students worked on sandblasting the metal pieces, two other students struggled to straighten the iron beams that had sustained damage.  This proved quite a challenge, but sweat and muscle and determination prevailed.

Coating the turntable with black rust paint

While some group members were working on the metal pieces used for Galileo, other members operated on the throttle and controller for the electric motorcycle.  After a successful dry run using light bulbs and a 50K potentiometer, heavy gauge wires were used to replace the thinner wires used for the bench test.  This replacement is necessary to enable the connection of the motorcycle motor to the controller.  This motor draws a lot of amps.  The size of a wire is correlated to the amount of current it can carry.

Another task worked on by Team A+ was creating a prototype mount on the bike for securing the motor, batteries and controller.  This task included carving different pieces of wood that would help secure the motor, batteries and controller.

Mounting the motor to the bike frame

The final task  on June 8th, 2010 was rebuilding and testing the front braking system. After connecting the brake lines and refilling the brake fluid, the pistons appeared to be seized with rust.  One volunteer will work on this problem exclusively until it is solved.  After all, safely stopping the motorbike is as important as running it.

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Separation Anxiety

On June 3rd, 2010 Team A+ group members split up into two groups to complete two separate projects. One group worked on the Electric Motorcycle, while the other group worked on Galileo (The Turning Tree).

Bench testing the motor controller

The first group invited Bob Martin from Windsor Starter’s Powerhouse to advise them in wiring the controller. Bob Martin had been a part of the project since its inception, and the students working on the motorcycle learned a lot from him. Bob answered crucial questions about the system, and now Team A+ is wiring the controller to light bulbs to bench test it. If the controller works properly, Team A+ should be able to control the dimness and brightness of the lamps. A powerful DC series motor will replace the light bulbs in the final project.

Loading the trees onto the trailer

Team A+ also packed up all the trees that had been removed from the on top of the turning tree into a trailer and in Noel’s car. The trees are being transferred to Guelph, where they will be replanted on top of the Galileo once it is rebuilt. Team A+ experienced difficulty while attempting to replace the V-belt when Galileo was fully assembled. The team is working on a solution to this problem so that the V-belt can easily be replaced once Galileo has been reconstructed in its new home.

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A+ Team members remove the rotating platform from the Galileo tower structure

The stormy weather paused just long enough to allow A+ Team to tear down Noel Harding’s Galileo.  With the aid of scaffolding on loan from Band-Ayd Systems, the brave students were able to safely remove the potted trees and large rotating platform from the 4m tall tower.  Once the turntable was comfortably on the ground, removing the bolts and disassembling the steel tower was a simple procedure.

Securing the steel components to Rod Strickland's pickup truck

The next step will be cleaning and preparing the metal parts and redesigning the rotating mechanism so that the sculpture can be erected in Guelph. Hopefully the weather will be as kind during the next outdoor mission.

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Galileo by Noel Harding                                                           Photo by Walter Willems

Galileo by Noel Harding is a solar powered kinetic sculpture built in 2008 with the assistance of Green Corridor students and volunteers.  The piece generates electricity from solar panels to power the turning tree mechanism, demonstrating the integration of engineering and nature.  Located on Huron Church Road, the main purpose of this mechanism was to help produce awareness for solar technology.

Team A+ removes the worn V-belt                          Photo by Emmanuel Asamoah

The current status of the mechanism was uncertain as the “Turning Tree” had stopped turning. Team A+, made up of engineering and art students, is determined to “GET THE TURNING TREE TURNING”.  In-depth analysis of the “Turning Tree” helped identify the problems associated with the mechanism. After several months of exposure to the elements the Galileo requires a new V-belt and some additional lubrication.

The “Turning Tree” mechanism is not only a reflection of engineering concepts, but it is also a testament of hard work and determination by students and professors at the University of Windsor.  Throughout the semester (Intersession, 2010) Team A+ is dedicated to “GETTING THE TURNING TREE TURNING” once again.

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