Also, for maximum strength and rigidity, care was taken to design the body so that all of the foam parts are either in tension or compression. The first design choice was to build the body almost entirely out of foam core, which is rigid, affordable, easy to acquire, and easy to cut. To ensure that this project is widely dispersed, considerable effort went into designing the Helios to be built with common tools and cheap materials. An Arduino micro-controller will be used to run the program and control the two servo motors. The mechanism will track the sun by using a program to calculate the star’s location in the sky thought the day, based on the global position of the Helios. The physical structure of Helios’s design, as with other heliostat designs, functions to mount a mirror onto two controllable axes. In addition to the number of uses of this technology, there is also a diverse range of structures that have been designed to enable solar tracking. Such a device can be used for many applications, from concentrating solar energy onto the heat reservoir of a power plant to illuminating areas that are blocked from the sun. One option for greener energy is to use a device called a heliostat, which uses a mirror to direct the sun’s light onto a target throughout the day. There is an effort in engineering to push energy generation away from the use of fossil fuels and towards greener alternatives. We aim to introduce young students to engineering and teach them about solar energy by having them build a Helios as part of their curriculum.
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