Gravity Vehicle C

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Re: Gravity Vehicle C

Postby chalker » August 29th, 2011, 9:11 pm

awww man. come on chalker, I expected to build some crazy-complex thing that uses a falling mass that is mounted on the vehicle with like 29 pulleys....
way to rain on my parade =P

Just wanted to point out it's my brother 'chalker7' that's raining on your parade. As for myself, 'chalker', it's always sunny, just like in philly;)

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Re: Gravity Vehicle C

Postby chalker » August 29th, 2011, 9:13 pm

any hints on what the scoring will be like? is it just hitting a point as quickly and accurately as possible?

Yes, measurements of various types will be made, and those will go into a formula to calculate the result. Low score wins;)

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Re: Gravity Vehicle C

Postby bearasauras » August 29th, 2011, 9:37 pm

any hints on what the scoring will be like? is it just hitting a point as quickly and accurately as possible?

Yes, measurements of various types will be made, and those will go into a formula to calculate the result. Low score wins;)
Yes, and ideally you'll want your vehicle to go as quickly, as accurately and as close to your predicted time as possible
Last edited by bearasauras on August 29th, 2011, 9:43 pm, edited 1 time in total.

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Re: Gravity Vehicle C

Postby Luo » August 29th, 2011, 9:39 pm

any hints on what the scoring will be like? is it just hitting a point as quickly and accurately as possible?

Yes, measurements of various types will be made, and those will go into a formula to calculate the result. Low score wins;)
Yes, and ideally you'll want your vehicle to go as quickly, as accurately and as close to your predicted time as possible
Not to mention, heh, that you use gravitational potential energy as the vehicle's sole means of propulsion to reach a Target Point after, in fact, you design, build and test one vehicle and ramp. :P
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Re: Gravity Vehicle C

Postby illusionist » August 30th, 2011, 6:23 am

Can we all just wait for the rules to come out?
no. we're too excited. not to gain an advantage, but plain excitement
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Re: Gravity Vehicle C

Postby hmcginny » August 30th, 2011, 7:02 am

hahah yeah i was asking just out of pure curiosity and excitement, since the chalkers were answering some general questions.
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Re: Gravity Vehicle C

Postby sj » August 30th, 2011, 12:29 pm

Is there any "leaked info" about dimensions and stuff to start prototyping? :D
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2012 Events: Robot Arm, Towers, Gravity Vehicle

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Re: Gravity Vehicle C

Postby illusionist » August 30th, 2011, 12:33 pm

Posted question already answered. Thus, this post has been deleted.
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Re: Gravity Vehicle C

Postby Flavorflav » August 31st, 2011, 7:30 pm

It seems like there are two ideas about gravity vehicle going around. One idea was that the car would be propelled by a falling mass, presumably pulling a string to turn the wheels. But other sources say like an eggless scrambler. From my kowledge of scramblers, they were pushed by a swinging mass of some kind, but then just coasted. So which is more accurate? Does the power source travel with the car? Just so I can begin to conceptualize some plans.
The second one is closer, but still not quite there. It will be a vehicle travelling down a ramp, propelled solely by its own mass.
Please tell me you are kidding. Everybody has to build ramps? No pulleys, hammers, or springs? Why? Why force everybody into the same cramped shoebox?

I am very, very disappointed. :cry:

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Re: Gravity Vehicle C

Postby chalker7 » August 31st, 2011, 7:41 pm

It seems like there are two ideas about gravity vehicle going around. One idea was that the car would be propelled by a falling mass, presumably pulling a string to turn the wheels. But other sources say like an eggless scrambler. From my kowledge of scramblers, they were pushed by a swinging mass of some kind, but then just coasted. So which is more accurate? Does the power source travel with the car? Just so I can begin to conceptualize some plans.
The second one is closer, but still not quite there. It will be a vehicle travelling down a ramp, propelled solely by its own mass.
Please tell me you are kidding. Everybody has to build ramps? No pulleys, hammers, or springs? Why? Why force everybody into the same cramped shoebox?

I am very, very disappointed. :cry:
Ramp design and construction will be a critical part of the competition. While it may seem very basic, ramp geometry (flat vs. curved and if curved, what shape exactly), material selection (friction, strength and weight will all be considered by top teams), transportation issues (the ramps may be difficult to move, requiring rapid disassembly/reassembly) and the launching/release mechanism all add significant complexity to the event. All of those factors will have to be optimized for you to consider doing well at a state tournament or nationals.

In my mind, one of the key benefits of this event is that it will be very accessible to brand new teams without direction while also offering many factors for optimization. Reducing mechanical complexity does not necessarily mean an event is more "simple," just easier to visualize.

I do not see it as a cramped shoebox at all. By your assumptions, forcing everyone to use mousetraps as the propulsion method for a vehicle is equally cramped. There will be a tremendous amount of variation between teams throughout the year.
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