Embedded Files
Objectives
Objectives
During the second week of the COSMOS Cluster 2 on Engineering Design and Control of Kinetic Sculptures, our team members learned how to program using RobotC to process sensor data and to control a motor in a Motion Robot. The concepts of automatic sensor data processing and controlling the motion of a component in a Kinetic Sculpture led to the design requirements of a Mini Sculpture. The Mini Sculpture design is a team effort that is completed during the third week of the COSMOS Cluster 2.
Design Requirements
Design Requirements
Our mini sculpture was required to have at least one sensor and one motor. The sensor(s) had to relay information to the motor to make it move/stop moving. We had to include both automated actions and a user interface. For this project, we were limited to only one LEGO NXT Brick and one motor to automate functions within our sculpture.
Design Choice
Design Choice
Ball Catcher
Ball Catcher
The concept of the Ball Catcher Design was that the ball would roll from the top of the track and the basket would catch it either with a user-controlled joystick or a speed sensor. The risks of this design were that it would be too simple and the code would be difficult with only one motor.
Changing Track
Changing Track
The concept of the changing Tracks Design was there would be a gate blocking the ball from rolling down and the user would lift it up. Then after the user lifted up the first gate there would be another gate that using a speed sensor would detect the ball and move the gate left or right. Depending on which way the gate moved the ball would go down different tracks. The risks of this design as that we couldn't do it with one motor and the tracks might not be able to shift properly
Kimchi
Kimchi
The concept of the Kimchi Design was that the ball rolls down a bunch of different tracks and falls through a basket onto a foam board. Once the ball hit the foam board the user would use a joystick to hit the ball off the foam board and into one of the three holes like golf. The risks of this design were that the ball wouldn't land and sit still on the foam board, the ball would miss the tracks when falling from the bell part of the track, and the programming might not work.
The most important stipulations for our model were reliability/accuracy, easy to build, Aesthetic, meets requirements, complex design, and the programming being simple.
Accuracy was important to the overall functionality of the sculpture. We needed the ball to accurately land on the tracks when falling from the bell track every time and we needed it to fall onto the foam board correctly every time.
We wanted it to be relatively easy to build and simple programming while still being a complex design so that it would be challenging, but not challenging enough to where we couldn't finish on time.
We needed it to meet all the requirements necessary like having a sensor, user control, and one motor.
The aesthetic did not matter as long as it functioned correctly, but we did prefer that it looked somewhat cool and interesting.
Overall our Kimchi design met the most of our standards.
Pugh Chart
Pugh Chart
Results
Results
The Kimchi Design was very difficult to construct and program, however, we were able to get it to land correctly on the foam board and program it so that the user could hit the ball.
WM2D
WM2D
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