We have the arm!!!

Now, when we finally finished the construction of the arm, it is time to tell you more about its history.
First of all, we created an arm using lego parts and then we wrapped adherent material around the claws.

Unfortunately, this wasn't the best solution because it was frail, and we weren't sure it could always  support the weight of a bottle. And since we didn't want to risk we decided to build another arm. With help from our coordinator, we now have a more robust bottle grabber which looks like this:

As you can see, it is mostly done using 3d printed parts and a lego motor which moves the threaded rod, and in turn it makes the claw move.