Prototype 1

This styrofoam, cardboard and tape prototype was created with the initial design for SHARP in mind. This prototype was made using the ball and socket method. This would allow the user to rotate their shoulder around using the ball. Prototype 1 was later dropped because it only allowed one exercise to be done and it was not very practical to build. Prototype 1 was made by Bong Choi.  

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Prototype 2

Prototype 2 was made using styrofoam, cardboard and tape with the initial design for SHARP. As with Prototype 1, it was later dropped because of the lack of exercise routines that could be performed on it. Prototype 2 was made by Gerardo Narez.

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Prototype 3: After design change 

Prototype 3 was made using plastic tubing, wood, cardboard, bungee cord and tape with the new design in mind. This prototype was favored because it was able to perform three different exercises and was a more practical design that would be easy to fabricate. Prototype 3 was made by all the creators. 

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Prototype 4

Prototype 4, which led to the final device, was made using an improved version of Prototype 3. It was made using acrylic, aluminum and acrylic glue. It was made using the turn-table idea to make the machine rotate around in order to allow the user to perform the three different exercises without moving the device off the wall. Prototype 4 was made by all the creators. 

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