SO WHAT'S OUR PROGRESS SO FAR?

The plan

It was difficult to immediately come up with a good purpose of our satellite. And yes, when we finally came up with a good idea, another challenge appeared: designing and building the satellite. There were a lot of steps involved. First we had to look at what components needed to fit in the satellite, then we based the design on that. This was still quite complicated, making it a real trial-and-error process. Even after all the theoretical calculations were correct, another set of practical problems appeared in the design, forcing us to make manual updates to the design.

Made with Blender

The mechanism

The mechanism we used to split the satellite into two parts is also very complicated. To keep it short, we stretched a nylon thread between the two halves to hold everything together. We melted this thread away so the halves fall apart. We do this by letting a resistor get very hot. For this method we needed components that were so big that there was little space inside the satellite itself.

The parachute

The parachute we use is made of parachute fabric, which is very light and thin. That piece of fabric is connected to the satellite with nylon threads. Since we have two halves, we also have 2 parachutes. We have calculated that the satellite has a minimum rate of descent of 13 meters per second.

Arduino

The arduino we used is the Adafruit feather sense. This arduino can measure all the things we need for our project.

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@multisat_scw