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The team then determined dimensions for an oven that one person can carry, while accommodating three pots. Professor Vanek's oven proved useful for this task, as it can hold three pots and be transported by one person. The interior of the oven was sized such that a small pot could be pushed to the front of the oven and not be impeded by the angled glass cover. A design was produced in AutoCAD to which the team referred throughout construction (Figure 1).
Figure 1: AutoCAD drawings of the Frame
After the dimensions for the oven were determined and the frame was designed, the team needed to determine the essential materials used in the oven. Since this oven will only be used in Ithaca, the team decided to ignore the limitations on materials to those only available in Nicaragua. Materials were chosen that are readily available locally, rather than imitating the materials used in Nicaraguan ovens
The team used 2x4 lumber that was split in half lengthwise to construct the oven's frame. This lumber is easy to come across locally, and happened to be stocked in surplus in the lab. The framing was all connected with coated wood screws available in any hardware store. Fiberglass insulation was used in the cavities of the oven because of its good insulation properties, its compatibility with high temperatures, and its local availability. The inside of the oven is covered with a thin fiberboard which offers some insulating properties as well as structural support for the thin, reflective, metal film attached to the inside of the oven. The team had originally decided to use aluminum sheeting to line the interior of the oven, but a roll of the film was presented to the team and we decided that it would most likely perform better. Double pane glass is used for the oven cover to maximize heat gains and provide better thermal resistance. The small solar oven is depicted in Figure 2 during and after construction.
Figure 2: Oven Frame during Construction and Completed Oven
In addition to designing and building the small solar oven, the team was also working to develop a new design for the prop rods on the ovens currently used in Nicaragua. The current prop rod design consists of a single wooden bar with holes so that the user can select the height and angle of the solar oven's lid. The method for determining a new prop rod design mainly consisted of discussion. There were a variety of factors to consider when designing a new prop rod. Such factors included availability of materials, ease of construction and retrofitting and if the new design would have any impact on how Nicaraguan women used the oven. The final design selected was based off of a prop rod design used on one of the power tools in the Winter Lab (Figure 3). 
_Figure 3: Prop Rod_
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