Embedded Files
Objectives
Objectives
During the fourth and last week of the COSMOS Cluster 2 on Engineering Design and Control of Kinetic Sculptures, our team has to integrate the Mini Sculpture concept(s) into a working Full Kinetic Sculpture. Lessons learned during the prototyping of the Mini Sculpture are now applied to ensure the Full Sculpture operates autonomously and is robust to any design or programming errors found during the Mini Sculpture design.
Design Requirements
Design Requirements
The Design Requirements for the Full Kinetic Sculpture consist of three main physical components: the use of multiple sensors, the use of multiple motors, and a user interface. The Design Requirements also have specifications for the control of the sculpture. The motor is required to act based off the data from the sensor in the automatic mode, and off the user's actions in the user interface mode. The Full Kinetic Sculpture also requires integrating the Mini Sculpture into a larger design, and making the whole sculpture more robust by eliminating or minimizing tape and cardboard. Parts from the Mini Sculpture that were prototyped using tape and cardboard had to be replaced using CAD parts manufactured with the LaserCAMM or 3D printer.
Design Process & Sketches
Design Process & Sketches
This sketch consists of the main elements of our sculpture.
"START": A marble is dropped and passes through the RGB/color sensor (depicted by the red/green/blue rectangle). Depending on the marble's color, the marble is sent to one of either basket, and then sent further down, where the speed sensor detects if there is a marble present. The ramp under the ball drop will then alternate sides like a seesaw to let the marble fall to either ramp. There is a Ferris Wheel located on one of the ramps, which we decided to incorporate into our Full Sculpture as another unique component. The marble can then be lifted back up to the start via an elevator and ramp.
Our Full Sculpture design is largely based on our Mini Sculpture design, called "Indecisive". Indecisive's most prominent feature is the ramp that moves left and right depending on the color of the marbles. We decided to expand on our current design by adding on another one of our concept designs, "Celsius" (depicted by the pink box) as well as an elevator and Ferris Wheel.
Risk Analysis
Ferris Wheel
Marble could miss the wheel
Could cause the marble to get stuck
Marble could be thrown off track (if wheel is not mounted correctly or starts tilting)
→ Used a wide-platform track instead of a regular-sized track so marble does not fall out
→ Changed our track so the marbles enter a ramp + added more claws to our chain to ensure that the wheel will collect all marbles at some point
Celsius
Missed detection from 2+ marbles being placed in too quickly (since ramp alternates for each marble passing through speed sensor)
→ If marbles are different color, then they will enter different baskets; the marbles will then travel with varying velocities, which will reduce the chances of Celsius making a detection error due to too little time between the 2+ marbles.
Elevator
Elongated the elevator in order to add more components; flimsy and could cause marbles to fall
→ Added intermediate wheels for structural integrity
Final Results
Final Results
Include images/movies of your final results to show the hard work your team has done to make this working Full Kinetic Sculpture. You may break down the presentation of your final results in sub-heading, but keeping it short and sweet is recommended.
Working Model 2D Simulations of our Full Sculpture's Key Components
WM2D of our concept "Indecisive"
Ramp changes direction based on the detected color of the marble
WM2D of our Tilting Track ("Celsius" design) component
The track tilts a different direction every time a marble is detected by the speed sensor
Photos and Videos of Full Kinetic Sculpture
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