Creating a hack which incorporates both hardware and software. We wanted to create a mechanical simulation of a real life situation.
What it does
It allows to user to pick up or move around object with 180 degrees of motion using an interface that accurately and smoothly mimics the dexterity of the human hand.
How I built it
We used four servo motors to give us diversity of range and position. The motors react to a variable resistor flex sensor and a joystick shield. We used bass wood as the main structural material for the arm.
Challenges I ran into
It was difficult to balance and maintain the structural integrity of the design because of the added weight of the motors and the torque it caused on the base. In addition, the motors were sometimes unstable and difficult to program smoothly.
Accomplishments that I'm proud of
We were most proud of the original design that we developed which was both structurally sound and mimicked with good precision the flexibility of a human finger.
What I learned
We learned how to use the Joystick Shield made for Arduino, and also learned about using Servo motors in a design.
What's next for The MAD Arm
In the future we would like to add more structural support for the MAD Arm in order to keep it more consistent and stable.