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A defining issue to consider for the project is the scale of the final prototype. A life-size scale for a wheelchair presents difficulties in obtaining the required materials for construction and testing, so a 1:4 scale model will be the end goal for the presented prototype. The prototype will encompass the curb scaling mechanism, which will demonstrate translating a model wheelchair from the ground onto an elevated platform. Common curb heights/depths are around 4 to 6 inches and can go up to 12 inches. Because our model will be 1:4, a target curb height of 1.5 inches will be used.
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