2015 International Online Rube Goldberg Machine Contest for ages 11-14TM

Barn Door's Open

School Name:

  • Cornerstone Christian Homeschoolers


  • Champaign, IL


  • USA


  • 7th and 8th


  • Elizabeth Nicol and Susan Barlow

Number of team members:

  • 5

What we're studying:

  • We're homeschoolers so we're studying everything. Examples include simple machines, art, science of movement, physics, team work, spelling, public speaking and drama --- and it all comes together with Rube Goldberg.

Our teacher's favorite quote:

Why we think we should win:

  • Because this is our first year building (some of us have been observing other RG machines for years), our machine is very durable and runs consistently well, it's a clean machine with clear steps and looks great, and the concept is very humorous. Also because we're awesome and we have the cows.

Suggestion for next years challenge:

  • Make a glass of lemonade.

Our Links:

Favorite Rube Goldberg Videos:

Good Luck to All Teams!

Last day to edit your team page is March 3, 2015!

Cast your vote: like this team on Facebook!Follow Rube for the latest news

Welcome to the 2015 Rube Goldberg Machine Contest. Keep up with the latest contest updates by following Rube on Facebook and Twitter.

Please note the NEW ORDER and ADDITIONAL ITEMS (MACHINE VOLUME WORKSHEET and THE 3 VIDEOS in Section 5) needed for this year’s contest.


Section #2: Our Machine Run Video #1

Section #3: OUR STEP LIST

Box #1: MACHINE VOLUME WORKSHEET - download (at 100%) page 17 from the Rule Book, fill it out, scan it at 100% and save as a .jpg. Upload just like the photos.
Box #2 and #3: Upload photos of your choice.

Section #5: OUR CLOSE-UPS: VIDEOS:  
Box #1: Machine RUN VIDEO #2

Welcome to our Rube Goldberg show! When we thought of zipping a zipper, we thought of the expression "Your barn door is open" (hint, hint: Zip your zipper!) and our machine plays off of that. Enjoy, and vote for us!

Our machine run video

Our machine explanation and walkthrough

Our step list

Your Barn Door is Wide Open

1) Farmhand who left the barn door open pulls out flag.
1) Tractor rolls out of barn.
2) Tractor tips cows.
3) Cows pile onto lightning-struck branch.
4) Branch swivels, allowing spoon holding fruit to drop the fruit, fruit falls while squirrel scampers up the tree.
5) Fruit impact scares bird, bird flies out of his birdhouse.
6) Bird hits electric pole.
7) Wire zaps horses, horses stampede.
8) Horses hit waterline.
9) Water line pulls out nail from watertower.
10) Water (in the form of marbles) flows down tornado and through river.
11) Water pulls well-bucket down.
12) Windmill turns.
13) String closes “barn door”.

Our close-ups: photos

Our close-ups: videos

Leave a comment, we want to know what you think:

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