Goals of Week 5:
Tasks Performed:
Event 6:
At the start of class, event six was created. Event six consists of a ramp (see image below) which is triggered by the swing popping a balloon, which then pushes down on the next groups power surge, starting their machine.
To build the ramp, a stack of yellow pencils was duct taped to the bottom of the one square foot sheet of plywood. This allows the ramp to pivot over a center point. After some testing, a barrier at the opposite end of the ramp was added to stop the robot from advancing into the next groups events. Further, to add force onto the switch, external weights were added to the ramp to help push the power surge's switch down. (see image below)
The ramp has an attached balloon that will stop the robot (event one) from advancing forward due to its presence in front of the ultrasonic sensor. After the balloon is popped by event five, the robot can advance up the ramp. Once the weight of the robot moves past the center point, the ramp will have enough force to push down the power surge's switch.
Event Integration:
After all the events were completed, each event was placed on the plywood for machine integration (see previous weeks for plywood stencil). A video on the complete transition between events of the Rube Goldberg will be provided in the coming weeks. Some notes on how to better the machine are as follows:
- Create the final event (event #6)
- Integrate each event on the 2' X 3' sheet of plywood
Additional Materials Brought to Class:
- Everything from previous weeks
- Balloons
- Weights
Tasks Performed:
Event 6:
At the start of class, event six was created. Event six consists of a ramp (see image below) which is triggered by the swing popping a balloon, which then pushes down on the next groups power surge, starting their machine.
To build the ramp, a stack of yellow pencils was duct taped to the bottom of the one square foot sheet of plywood. This allows the ramp to pivot over a center point. After some testing, a barrier at the opposite end of the ramp was added to stop the robot from advancing into the next groups events. Further, to add force onto the switch, external weights were added to the ramp to help push the power surge's switch down. (see image below)
The ramp has an attached balloon that will stop the robot (event one) from advancing forward due to its presence in front of the ultrasonic sensor. After the balloon is popped by event five, the robot can advance up the ramp. Once the weight of the robot moves past the center point, the ramp will have enough force to push down the power surge's switch.
The ramp (seen bottom left) is the final event
The main alteration to this event are the weights--without them, the ramp does not have enough force to press the switch. Also, something to keep in mind is the type/size of balloon. If the balloon is too small, it won't stop the robot from advancing forward and will not pop as easily; however, if the balloon is too big, it won't fit on the ramp.Event Integration:
After all the events were completed, each event was placed on the plywood for machine integration (see previous weeks for plywood stencil). A video on the complete transition between events of the Rube Goldberg will be provided in the coming weeks. Some notes on how to better the machine are as follows:
- create more structural support for events (increases accuracy of events)
- add a weight to the bottom of the pendulum (adds force to the swinging motion)
- use specific size/shape balloons (increases pop rate)
- add weight to ramp (adds force into the switch)
Top view of Rube Goldberg Machine
Side View of Rube Goldberg Machine
Improvements for next week:
- Add the ball back onto the board holding the iPhone up
- Create more reliability in transitions
No comments:
Post a Comment