Put Money in a Piggy Bank
Sunday, March 03, 2019 Setup Time:
9:00 AM Contest Start Time:
Live Division II - Ages 14 - 18 (High School)
Michael Otterman - invitation signed.
Silas Johnson - invitation signed.
Hayden Mesnick - invitation signed.
What we're studying:
This is not part of a class or formal club for us, we are just doing it for fun, and for the challenge. However, we are learning teamwork, problem solving, mechanics, some electronics, a touch of chemistry, poetry, handiwork skills, design, computer hardware, and, most importantly, how to apply contact paper smoothly. And, of course, how to stay warm in an unheated garage in Cleveland in January (and the joys of spray painting in the snow . . . ). Our Team Leader's favorite quote:
"Success consists of going from failure to failure without loss of enthusiasm." - Winston Churchill Why we think we should win:
We think we should win because we did this on our own, with just three of us in our leader's garage, and we would like to inspire other kids to start their own teams. We believe that you don't need a lot of fancy, expensive equipment to do really amazing things (and have fun too). We also use mechanics, chemical exchanges, electrical exchanges, magnets, a pneumatic piston we made ourselves, and our poem is hilarious (Data check: 100% of adults seeing our machine and hearing the poem -so far- have involuntarily chuckled). We also worked extra hard on aesthetics this year. And, our machine works really well too! We think Rube Goldberg would be proud. Beyond our hard work, we also think that it would be exciting and fun to inspire kids to start Rube Goldberg teams locally. Our team started as a robotics team when we were all in second grade and we have mentored younger students for years (one of our "mentee" teams went to States for FLL robotics and won an award). We switched to Rube Goldberg because one of our team members saw it and we all thought it would be fun to try (which obviously turned out to be true). If we won, we would have a much easier time recruiting younger teams to start Rube Goldberg teams. We would be the local experts. Suggestion for next year's challenge:
Flip a pancake. Pour a glass of water. Roll dice. Open a soda can. Favorite Rube Goldberg video:
The machine depicts the tale of Paul, who tenaciously seeks to make money.
The tale goes like this:
There once was a young boy named Paul.
He wanted to chew a gumball.
So he put in a quarter,
No more and none shorter,
And watched as the gumball did fall.
Now Paul wanted some cash, understand?
So he set up a lemonade stand.
Deliv’ring news brought in dough;
And with the lawns he would mow,
Young Paul could not keep with demand.
Now Paul’s growing up, do you see?
And he’s collecting some extra money.
Babysits for the neighbors,
At the shake shop he labors,
Now his dreams are all guaranteed.
Paul’s thinking about future plans,
Life plans are hard to command,
So Paul sits by the fire,
Smoke going higher,
And Paul’s life will be ever grand.
Paul’s growing up and at college,
Where he’s going to gain quite some knowledge.
Gets a job at Lehman,
But to his chagrin,
It’s going to take a great fall-idge.
Paul’s house is now put in foreclosure,
And Paul’s dream is just about over.
So bitcoin’s the new plan,
In his home of Cleveland,
Where he’ll hopefully regain his composure.
Now Paul needs to pay monthly rent,
And here’s how his whole exchange went:
The bitcoin cashes in,
Paul thinks it’s a win,
But Paul only ends up with a cent.
The machine goes like this:
The machine starts when someone turns the gumball machine handle. A metal “gumball” falls down the shoot and hits a mousetrap. The mousetrap is attached to a string that releases an OPEN sign on Paul’s lemonade stand. The open sign falls and hits a lever that “delivers” the newspaper that falls onto the lawn. When the paper falls, it hits an electrical switch which turns on the “sun” (a lamp) that shines on the “little girl” (a doll) who Paul is babysitting. The lamp also shines on a light sensor that is hidden behind the handle of the “lawn mower.” The “lawn mower” is actually an EV3 robot that is actuated by the light sensor. The robot/lawn mower then pulls down a dowel rod that is holding up a “hand serving a milkshake from a drive-thru window.” The “milkshake” is actually hot vinegar. The vinegar spills into a bowl behind the house, sending “smoke” (steam vapor) up the chimney of the house (Paul dreams wistfully about the future - and we sigh and wait pensively). The vinegar is actually dissolving a sugar cube that is keeping apart two electrical wires. Once the sugar dissolves and the circuit is connected, it heats a Tungsten wire. The Tungsten wire melts through a slice of bubble wrap that is holding back a trophy (Paul’s dreams and aspirations) that is spring-loaded with rubber bands. Once the bubble wrap melts in half, the trophy pops up and hits an electrical switch that activates a fan. The fan blows on a “tuition check” (Are we really blowing our money?) which is actually an old pinewood derby car with a cardboard sail on it. The “tuition check” (which has sent Paul to college) has a pin behind it that runs into a balloon (the economic bubble). Once the “economic bubble” is popped, the Lehman Brothers’ tower falls on Paul’s house. The house, that had a friendly welcome mat, now has a “Foreclosure” sign in front. When the sign flips up, it hits another switch that turns on a solenoid, ultimately activating a pneumatic piston (which is hidden behind the stock market arrow indicating that the bitcoin exchange rate is increasing). At the same time, a switch turns on the video screen showing a bitcoin video. The piston pulls a string that releases a block underneath a ramp holding a penny. Once the ramp is released, the penny rolls down the ramp into the piggy bank.
Our Step List
Put coin in bank.
1) “Gumball" rolls down ramp
2) “Gumball” hits mousetrap.
3) Mousetrap pulls string releasing magnet
4) Open sign falls and hits lever releasing the newspaper
5) Newspaper is delivered and hits switch
6) “Sun” turns on and activates lawn mower robot
7) Lawn mower mows grass and pulls stick releasing milkshake arm
8) Milkshake server pours drink into bowl
9) Drink (hot vinegar) dissolves sugar connecting electrical wires
10) Electrical connection heats Tungsten
11) Heated Tungsten melts bubble wrap in half
12) Broken bubble wrap releases rubber band holding dreams and aspirations (trophy)
13) Dreams and aspirations hits a switch
14) Switch turns on fan that blows tuition check
15) Tuition check pops balloon
16) Popped balloon releases Lehman Brothers tower
17) Tower falls on house and hits string
18) String pulls up Foreclosure sign
19) Foreclosure sign hits switch for piston (and also Bitcoin video)
20) Switch activates 5v relay
21) Relay activates air valve
22) Air pushes up piston
23) Piston pulls string to pull block from underneath penny ramp
24) Coin rolls down into piggy bank
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