Monday, October 10, 2011

Rube Goldberg Update part two

Things have been going according to plan... well an adjusted plan. I hate to say it but we ended up having to scratch the match-lighting mousetrap invention that we started using. This idea was just too unreliable; whoever thought "green" matches were a good idea should be publicly discredited, but despite the matches the overall design was not reliable enough to be a focal point in our machine. We actually adjusted our second step to include a mousetrap device reminiscent of medieval torture machines. Featured below is this machine.


If you look closely you can aptly observe the razor blade ductaped to the mousetrap. This devise, besides taking off fingers, serves to cut the piece of string that is holding the ruler in place.

The ruler then falls setting off the dominoes, which in turn bumps a group of marbles.

The marbles fall into a funnel that directs them into a cup.

The cup is attached to a piece of paper that is held down by a second set of dominoes. The cup (which is attached to the paper with a sting) falls pulling the string through the pulley mechanism, this pulls the paper out from under the dominoes triggering them to fall.

This whole process can be seen in the following video. I have slowed it down just a smidge so the steps can be more easily seen.


We also figured out how we were going to get our speaker to play, which had been giving us some major issues. we were able to figure it out because Mel Strong (the 263 teacher) let us barrow a converter that tweaks the frequency of the sound waves being produced.

We are still in the process of figuring out all of the steps that will make it possible for us to get from our sixth step (the second set of dominoes) to the step that turns the speaker on.

All in all, I fell that our project is coming along frustratingly, but well.

1 comment:

  1. It looks like it's a lot of fun! I think the mouse trap "axe" is really clever. Do you think it could cut tougher string too?

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