Mousetrap Vehicle B

User avatar
SirBobo
Member
Member
Posts: 87
Joined: October 24th, 2011, 8:17 pm
Division: B
State: CA

Re: Mousetrap Vehicle B

Postby SirBobo » January 30th, 2012, 5:10 pm

Is it okay if your mousetrap is all the way the down but the car is still moving?
I am SirBobo and I approve this message

"Insert meaningful quote here"

Image Image

chalker
Member
Member
Posts: 2086
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Mousetrap Vehicle B

Postby chalker » January 30th, 2012, 7:19 pm

SirBobo wrote:Is it okay if your mousetrap is all the way the down but the car is still moving?



General Rule #2 probably applies here: http://soinc.org/ethics_rules

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

User avatar
SirBobo
Member
Member
Posts: 87
Joined: October 24th, 2011, 8:17 pm
Division: B
State: CA

Re: Mousetrap Vehicle B

Postby SirBobo » February 2nd, 2012, 3:55 pm

I am doing the wingnut braking system and I am wondering is the threaded axle in the front of the back?
I am SirBobo and I approve this message

"Insert meaningful quote here"

Image Image

User avatar
illusionist
Member
Member
Posts: 942
Joined: March 20th, 2010, 4:13 pm
Division: C
State: MI

Re: Mousetrap Vehicle B

Postby illusionist » February 2nd, 2012, 4:06 pm

SirBobo wrote:I am doing the wingnut braking system and I am wondering is the threaded axle in the front of the back?

Well, it would be easier to have it on the axle that is not being powered by the mousetrap. Other than that, the only issue is skidding. These vehicles are usually very light, so skidding isn't a huge issue. I don't think performance will be hugely impacted by which axle is powered and which one is braking. Others might have different opinions (feel free to comment).
2012-2013 Building Event Captain
Rule 7d. "Event Supervisors are allowed to break any competitors' devices" -bearasauras

Gemma W
Member
Member
Posts: 196
Joined: March 10th, 2011, 2:12 pm
Division: Grad
State: NY

Re: Mousetrap Vehicle B

Postby Gemma W » February 3rd, 2012, 12:28 pm

illusionist wrote:
SirBobo wrote:I am doing the wingnut braking system and I am wondering is the threaded axle in the front of the back?

Well, it would be easier to have it on the axle that is not being powered by the mousetrap. Other than that, the only issue is skidding. These vehicles are usually very light, so skidding isn't a huge issue. I don't think performance will be hugely impacted by which axle is powered and which one is braking. Others might have different opinions (feel free to comment).

If you use the frount axle to break the car then the momentum may cause the back axle to rise up, whereas if the back axle is breaking then the frount axle will merely be moving foward and not jump. :idea:
2015 events: WIDI, Protein Modeling, Geomapping, Chem Lab

2014 events: WIDI, Geomapping, Materials Science, Food Science
2013 events: WIDI, Mousetrap Vehicle, Heredity, Food Science, Metric Mastery

Best ever place: Nationals, 3rd in WIDI

r00ki316
Member
Member
Posts: 32
Joined: April 15th, 2010, 8:48 pm
Division: Grad
State: -

Re: Mousetrap Vehicle B

Postby r00ki316 » February 3rd, 2012, 5:31 pm

I'm supervising this event and am curious as to the exact intent of the Center Line Bonus wording for purposes of scoring.
My gut instinct tells me the qualification should be based on the entire duration of the run but the text seems to indicate otherwise:

6d.
"A Center Line Bonus of -20.0 points is awarded if ... while the vehicle travels between the start and finish line as determined by the Measurement point."

So is this saying that if a vehicle veers such that the Center Line is no longer between the vehicle's track after the measurement point has passed the finish line, it still receives the bonus?

Builder9
Member
Member
Posts: 2
Joined: February 4th, 2012, 8:58 am
Division: B
State: NY

Re: Mousetrap Vehicle B

Postby Builder9 » February 4th, 2012, 9:02 am

Are there any size limitations or requirements for the mousetrap cars? I let someone borrow my rules sheet and I haven't gotten it back yet. Thanks :?:

chalker
Member
Member
Posts: 2086
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Mousetrap Vehicle B

Postby chalker » February 4th, 2012, 12:36 pm

r00ki316 wrote:So is this saying that if a vehicle veers such that the Center Line is no longer between the vehicle's track after the measurement point has passed the finish line, it still receives the bonus?


Yes

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

chalker
Member
Member
Posts: 2086
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Mousetrap Vehicle B

Postby chalker » February 4th, 2012, 12:37 pm

Builder9 wrote:Are there any size limitations or requirements for the mousetrap cars? I let someone borrow my rules sheet and I haven't gotten it back yet. Thanks :?:



yes <1m long and <.35m wide

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

Builder9
Member
Member
Posts: 2
Joined: February 4th, 2012, 8:58 am
Division: B
State: NY

Re: Mousetrap Vehicle B

Postby Builder9 » February 4th, 2012, 7:46 pm

chalker wrote:
Builder9 wrote:Are there any size limitations or requirements for the mousetrap cars? I let someone borrow my rules sheet and I haven't gotten it back yet. Thanks :?:



yes <1m long and <.35m wide


Thanks for your reply, I see it now on the scoring sheet.

User avatar
mousetrapfury
Member
Member
Posts: 10
Joined: November 29th, 2011, 12:48 pm
Division: B
State: NC

Re: Mousetrap Vehicle B

Postby mousetrapfury » February 5th, 2012, 12:02 pm

Hey what would be the best way to keep the chasis and wheels from sliding around :?:

User avatar
mousetrapfury
Member
Member
Posts: 10
Joined: November 29th, 2011, 12:48 pm
Division: B
State: NC

Re: Mousetrap Vehicle B

Postby mousetrapfury » February 5th, 2012, 12:03 pm

Please help me :cry: thank you if you reply :mrgreen:

User avatar
SirBobo
Member
Member
Posts: 87
Joined: October 24th, 2011, 8:17 pm
Division: B
State: CA

Re: Mousetrap Vehicle B

Postby SirBobo » February 5th, 2012, 5:54 pm

Do you mean your axle is moving around?
I am SirBobo and I approve this message

"Insert meaningful quote here"

Image Image

chalker
Member
Member
Posts: 2086
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH

Re: Mousetrap Vehicle B

Postby chalker » February 5th, 2012, 9:36 pm

mousetrapfury wrote:Hey what would be the best way to keep the chasis and wheels from sliding around :?:



Without more of a description of your problem, it's hard for anyone to help you. That said, I suspect what you need are some sort of bearings to hold the axles to the chassis.

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

Wongio123
Member
Member
Posts: 1
Joined: February 6th, 2012, 6:27 pm
Division: B
State: MI

Re: Mousetrap Vehicle B

Postby Wongio123 » February 6th, 2012, 6:36 pm

Are you allowed to have two mousetraps this year or just one


Return to “2012 Build Events”

Who is online

Users browsing this forum: No registered users and 1 guest