Battery Buggy B

Re: Battery Buggy B

Postby Insert Name Here on Sun Apr 10, 2011 9:29 pm

So at STATE you have to have an amazing score to place. Like my team, we had an estimated score of around 250. And by the end (we had recorded and estimated all the other team's scores too), we thought we were gonna place considering we had one of the fastest times and within a meter of the fixed point. But we were sadly mistaken, :(
I go to school at Cerro Villa MS. A neighboring school of El Rancho Charter, a once dominating science olympiad team. Rebecca Black goes to El Rancho. It's Friday everyday there. :D
Insert Name Here
Member
Member
 
Posts: 36
Joined: Tue Mar 22, 2011 8:25 pm
Location: stuck at home... *sigh*
Division: B
State: CA

Re: Battery Buggy B

Postby Gemma W on Sun Apr 10, 2011 9:34 pm

Wait, within a meter? As in one hundred centimeters? No offense, but a competitive score is more like within ten cm. Also, there's no way you could have a score of 250 if you were off by even half a meter. The score is distance in mm plus time x 25.
Gemma W
Member
Member
 
Posts: 163
Joined: Thu Mar 10, 2011 6:12 pm
Location: France
Division: B
State: NY

Re: Battery Buggy B

Postby JohnStack2 on Mon Apr 11, 2011 10:53 am

onixion wrote:any help on making it turn


Angle the wheels to one direction and angle the car the other direction at the right place to make it turn to the tape
http://www.wix.com/jstack/itsjustaoilspill website design Check it out
JohnStack2
Member
Member
 
Posts: 4
Joined: Fri Jan 14, 2011 11:59 am
Division: B
State: KS

Re: Battery Buggy B

Postby JohnStack2 on Mon Apr 11, 2011 10:55 am

Epicfail wrote:Is there a way to make a four wheel buggy turn other than different wheel sizes and screw at the front? or a way to make it go straight, and then turn (around the bucket) and the go straight again?

the only way to do that would be to have a computer chip to tell it when it goes a certian distance and then turns so i dont think so
http://www.wix.com/jstack/itsjustaoilspill website design Check it out
JohnStack2
Member
Member
 
Posts: 4
Joined: Fri Jan 14, 2011 11:59 am
Division: B
State: KS

Re: Battery Buggy B

Postby JohnStack2 on Mon Apr 11, 2011 10:59 am

hotglueman wrote:What is this micro switch :?:

a switch that can turn of the main switch
http://www.wix.com/jstack/itsjustaoilspill website design Check it out
JohnStack2
Member
Member
 
Posts: 4
Joined: Fri Jan 14, 2011 11:59 am
Division: B
State: KS

Re: Battery Buggy B

Postby fleet130 on Mon Apr 11, 2011 11:10 am

hotglueman wrote:What is this micro switch :?:
Micro Switch
Miniature snap-action switch
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!
User avatar
fleet130
Moderator
Moderator
 
Posts: 430
Joined: Sat Nov 10, 2001 7:06 pm
Location: Mare Tranquillitatis

Re: Battery Buggy B

Postby Gemma W on Mon Apr 11, 2011 1:46 pm

JohnStack2 wrote:
Epicfail wrote:Is there a way to make a four wheel buggy turn other than different wheel sizes and screw at the front? or a way to make it go straight, and then turn (around the bucket) and the go straight again?

the only way to do that would be to have a computer chip to tell it when it goes a certian distance and then turns so i dont think so


Which I believe is illegal.
Gemma W
Member
Member
 
Posts: 163
Joined: Thu Mar 10, 2011 6:12 pm
Location: France
Division: B
State: NY

Re: Battery Buggy B

Postby Epicfail on Tue Apr 12, 2011 9:26 pm

Yea, i think so too. Pulley or gears? i used pulley
Epicfail
Member
Member
 
Posts: 43
Joined: Sat Feb 20, 2010 4:09 pm
Division: B
State: MI

Re: Battery Buggy B

Postby scifipi on Tue Apr 12, 2011 10:59 pm

Epicfail wrote:Yea, i think so too. Pulley or gears? i used pulley

I use gears. To me, they seem like they're simpler, but I don't know the ups and downs of pulleys and gears. Can anyone list them?
----------
~Amanda~
Mousetrap Vehicle, Experimental Design, Crime Busters, Mission Possible

Daniel Wright JHS in Illinois
(Division B)
User avatar
scifipi
Member
Member
 
Posts: 62
Joined: Sun Jan 24, 2010 1:02 am
Location: Daniel Wright JHS Illinois
Division: B
State: IL

Re: Battery Buggy B

Postby Gemma W on Wed Apr 13, 2011 6:51 am

I used gears, because of the way our motor and axle connection works.
Gemma W
Member
Member
 
Posts: 163
Joined: Thu Mar 10, 2011 6:12 pm
Location: France
Division: B
State: NY

Re: Battery Buggy B

Postby scifipi on Fri Apr 15, 2011 1:53 pm

So does that mean there is no difference in using gears or pulleys just as long as it works with the motor?
----------
~Amanda~
Mousetrap Vehicle, Experimental Design, Crime Busters, Mission Possible

Daniel Wright JHS in Illinois
(Division B)
User avatar
scifipi
Member
Member
 
Posts: 62
Joined: Sun Jan 24, 2010 1:02 am
Location: Daniel Wright JHS Illinois
Division: B
State: IL

Re: Battery Buggy B

Postby Gemma W on Sat Apr 16, 2011 9:13 am

scifipi wrote:So does that mean there is no difference in using gears or pulleys just as long as it works with the motor?


I'm not sure what any differences are, but as long as it works with the motor it should probably be good. I think it also depends on how much space you have on your car, since pulleys take up more space. I'm not an expert either though, so you probably should do some other research or get someone else's opinion. I know one advantage of gears is that they cannot slip, but pulleys may be cheaper and/or easier to build.
Gemma W
Member
Member
 
Posts: 163
Joined: Thu Mar 10, 2011 6:12 pm
Location: France
Division: B
State: NY

Re: Battery Buggy B

Postby illusionist on Sat Apr 16, 2011 11:43 am

What she said was right. Pulleys are possibly cheaper, since you can use some plastic discs and some rubber bands to make them. However, they slip quite easily depending on the weight of your vehicle and the speed. Gears would be the best choice since you can also buy them pretty cheaply, and they are more durable/easier to place in teh vehicle.
2012-2013 Building Event Captain
Rule 7d. "Event Supervisors are allowed to break any competitors' devices" -bearasauras
User avatar
illusionist
Member
Member
 
Posts: 942
Joined: Sat Mar 20, 2010 7:13 pm
Division: C
State: MI

Re: Battery Buggy B

Postby Gemma W on Sat Apr 16, 2011 2:42 pm

If you do use gears, make sure that they are well mounted and mesh well. If they don't mesh well it can lead to inaccuracy or just not working at all.
Gemma W
Member
Member
 
Posts: 163
Joined: Thu Mar 10, 2011 6:12 pm
Location: France
Division: B
State: NY

Re: Battery Buggy B

Postby Epicfail on Fri Apr 22, 2011 9:49 pm

...hmm...i don't think gears even works on our buggy because we use a wingnut/micro switch and pulley on same axle so in order to to wind the wingnut back we need to take the rubber band off...
Epicfail
Member
Member
 
Posts: 43
Joined: Sat Feb 20, 2010 4:09 pm
Division: B
State: MI

PreviousNext

Return to 2011 Building Events

Who is online

Users browsing this forum: No registered users and 1 guest