Battery Buggy B

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Re: Battery Buggy B

Postby cheezer » March 28th, 2010, 2:47 pm

would it be possible to see a picture or diagram of how it looks I can't picture it?


What exactly do you think it violates?
The rubber band which is my drivetrain is over the wheel and it says that nothing but the wheels can touch the ground but still they've let i slide before?

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Re: Battery Buggy B

Postby new horizon » March 28th, 2010, 3:15 pm

i'm pretty sure it could go either way.
if it's over the wheel, obviously the rules say only the wheels can touch the ground. I honestly won't risk it. however I have come to see that lots of building event supervisors don't exactly know all the rules very well, so maybe if you're lucky....? but taking that chance isn't exactly ideal.

i'd suggest some modification to your design, although I don't know it well, prehaps tying the rubber band over the axle or something..... i'm not sure.
when's your competition? if you have some time i'd suggest you do use the threaded rod/wingnut method as it's rather easy to build.

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Re: Battery Buggy B

Postby fleet130 » March 29th, 2010, 10:04 am

The rubberband is part of the wheel! Any event supervisor who rules otherwise probably doesn't need a fan in their bathroom.
Information expressed here is solely the opinion of the author. Any similarity to that of the management or any official instrument is purely coincidental! Doing Science Olympiad since 1987!

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Re: Battery Buggy B

Postby new horizon » March 30th, 2010, 1:39 pm

just wondering, but what are you guys using as your chassis material?
i'm using half inch wood, it's pretty durable (i can't ID the type of wood, but it's kinda heavy).

Maybe change it to balsa wood now? Kinda scared though that balsa would break, it's extremely easy to break, which is rather unfortunate.

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Re: Battery Buggy B

Postby sciolympian » March 30th, 2010, 1:53 pm

one of our battery buggy's uses plastic, the other uses plexiglass :D

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Re: Battery Buggy B

Postby Jocool » March 30th, 2010, 6:33 pm

just wondering, but what are you guys using as your chassis material?
i'm using half inch wood, it's pretty durable (i can't ID the type of wood, but it's kinda heavy).

Maybe change it to balsa wood now? Kinda scared though that balsa would break, it's extremely easy to break, which is rather unfortunate.
one of our battery buggy's uses plastic, the other uses plexiglass :D
the best chassis material is erector set. it is adjustable and easy to built. it is also precut.
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Re: Battery Buggy B

Postby Jocool » March 30th, 2010, 7:05 pm

my battery buggy absolutely hates me and my partner. the motors apparently melt without even getting hot.
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Re: Battery Buggy B

Postby new horizon » March 30th, 2010, 7:25 pm

are you using a microswitch or are you just jamming the wheels?

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Re: Battery Buggy B

Postby Jocool » March 30th, 2010, 7:33 pm

we use both.
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Re: Battery Buggy B

Postby new horizon » March 30th, 2010, 7:34 pm

that's weird, we do the same thing but our motor is still ok.

try changing or testing different type of motors.

and just wondering, but what is your chassis made out of?

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Re: Battery Buggy B

Postby Jocool » March 30th, 2010, 10:30 pm

erector set. it works wel.
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Re: Battery Buggy B

Postby new horizon » March 31st, 2010, 8:16 am

are you using the erector motor? because that's what we're using and it's ok. doesn't seem to have problems. and is the motor melting or are the wires melting?

i'm actually just thinking about buying the diamond patterened 2*1 ft aluminum and cutting that/drilling it to make a okay, really lightweight chassis.

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Re: Battery Buggy B

Postby Jocool » March 31st, 2010, 1:14 pm

the motor is melting. the wires burn as a result.
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Re: Battery Buggy B

Postby new horizon » March 31st, 2010, 1:17 pm

is it defect? have you tried replacing the motor?

what batteries are you using?

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Re: Battery Buggy B

Postby Jocool » March 31st, 2010, 1:46 pm

4 AA. we dont know what happened. this time, it was just a melting of the case. idk about the other time.
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