Put Money in a Piggy Bank
Online Division I - Ages 11 - 14 (Middle School)
Rose Bodie - invitation signed.
Colin Rickert - invitation sent
Conner Worth - invitation sent
Grace Worth - invitation sent
Abby Worth - invitation sent
Matthias Nigmann - invitation signed.
Lena Wilson - invitation signed.
Colin Rickert - invitation signed.
Noah Morris - invitation signed.
Connor Wilson - invitation signed.
Jonas Doran - invitation sent
Favorite Rube Goldberg video:
The machine starts with pushing a button that triggers a pendulum, this hits a switch that starts a steel marble going up to a run, that falls and releases a hot wheel car. The hot wheel car bumps the record player arm causing the record player to start going round and round. This causes the string to wrap around the giant yellow duck. The string pulls out cardboard holding back a steel marble that goes down a nail run. At the end the Steel marble hits a much larger steel marble that rolls into a coper switch that triggers our lego motor. The lego motor turns on the 12v pump that inflates a plastic bag. There is a coin in a slot of a PVC pipe, it will start rolling and then fall into the piggy bank.
Our Step List
1. Plan out the different parts of the machine.
2. Assign different parts of machine to kids
3. Each group would build their part and get it working
4. Showed each part to the entire team
5. Decide what parts to keep
6. Work out the order of the different parts. The Pendulum was always going to be at the start
7. Started working at the start and worked on connecting the next part
8. Kept working on this until it would work 3 times out of 5.
9. Kept notes and marked on wood the location for the different parts. This is very very important.
10. We decided to not use some of the designs
11. Kept adding new parts, worked on getting them working, 3 out of 5 times.
12. We had several different ideas for how to get the coin in the piggy bank. Two of them worked pretty well. We dropped one
because it covered up the piggy bank you could hardly see it. We really wanted to be able to see the 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