Pour A Bowl of Cereal
Online Division I - Ages 11 - 14 (Middle School)
Rose Bodie - invitation signed.
Markus Windsor - invitation signed.
Andreas Windsor - invitation signed.
Matthias Nigmann - invitation signed.
Colin Rickert - invitation signed.
James Hyman - invitation signed.
Conner Worth - invitation sent
Jonas Duran - invitation sent
Favorite Rube Goldberg video:
We start with a marble run that trips a k'nex wheel this knocks of a weight that drops a ball bearing though a maze, the ball bear completes a circuit in a funnel that turns on a k'nex motor, this drives a chain that pulls up a flag that trips a gate, this gate trips another k'nex gate that pushes a hot wheel car down track. The car bumps a record player arm towards the center this cause the record player to start spinning. The large Duck does too things, it starts a domino fallings, progression in size from small to large and pulls out a pin that allows a weight to fall that opens lego geared gate and pours cereal into the bowl. The last cereal box pulls a string that starts a hot wheel car going down a spiral track. The car then goes into a hot wheel car accelerator that shots the car into a stick holding up a hammer. This cause the hammer to fall hitting a light switch, that turns on a magnetic marble, the marble goes up the run and then rolls down the track and falls into a funnel, it hits a hinge switch turning on the 12v pump that pumps milk into the bowl. After about 4 seconds a relay goes off and turns on another motor that drops a lego hammer on a bell to let you know your breakfast is ready.
Our Step List
1. Assign different steps of the machine to each child. They will build it at home and bring to club build sessions.
2. Rough fit the different steps to each other. Work out how they different parts fit together best
3. Work on making machine work reliably. Goal four out of five runs are successful.
4. Record Video of the working machine.
5. We worked on getting a clean run of the first part of the machine, up to the record player.
6. Then we worked on getting a clear run of the middle part of the machine. From the record player to the hot wheel hammer.
7. Then the last part of the machine. From the hot wheel hammer to the ringing the bell.
8. We where carful to have all the parts on the board so that we knew where all the parts would be located.
9. Then we works on a script for the video walk through. Rehearsed who was going to say what and the introduction.
10. We where concerned about keeping under that time limit for the videos, but that was not a problem
11. Then we worked on getting a clean run of the machine for the video's
12. Mark all positions, take notes. We have to be able to re-assemble the machine for local Science Day and for the 4H Fair.
Our Close-ups: Photos
A maximum of 3 close-ups (scanned diagrams, photos). Images must be JPG or PNG, and less than 5 MB.
Our Close-ups: Task Completion
Our Machine Explaination and Walkthrough
Our Machine Run Videos