Mousetrap Vehicle B

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SirBobo
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Re: Mousetrap Vehicle B

Postby SirBobo » December 26th, 2011, 4:44 pm

Do any of you guys know how to reduce wheel wobble? My CDs are out of control!ಠ_ಠ
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Re: Mousetrap Vehicle B

Postby Sunshine Ninja » December 27th, 2011, 4:34 am

we had the same problem..... we switched to dvds and they work better.

Also... The rules say the trigger has 2 be vertical?
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Re: Mousetrap Vehicle B

Postby illusionist » December 27th, 2011, 7:57 am

SirBobo wrote:Do any of you guys know how to reduce wheel wobble? My CDs are out of control!ಠ_ಠ

Last year, we had a similar issue, and to fix it we used washers when attaching the CDs to the axles. We found these rubber washers at Home Depot, that matched the inside diameter of our CDs and the outside diameter of our axles. We glued the CDs to the washers, then the washers to our axles. This basically eliminates wobble, so long as you glue them firmly and ensure that the CD is perpendicular to the axle (90 degrees).
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Re: Mousetrap Vehicle B

Postby SirBobo » December 27th, 2011, 1:44 pm

illusionist wrote:
SirBobo wrote:Do any of you guys know how to reduce wheel wobble? My CDs are out of control!ಠ_ಠ

Last year, we had a similar issue, and to fix it we used washers when attaching the CDs to the axles. We found these rubber washers at Home Depot, that matched the inside diameter of our CDs and the outside diameter of our axles. We glued the CDs to the washers, then the washers to our axles. This basically eliminates wobble, so long as you glue them firmly and ensure that the CD is perpendicular to the axle (90 degrees).


Thanks a lot!
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Re: Mousetrap Vehicle B

Postby illusionist » December 27th, 2011, 2:19 pm

No problem, here's one like what we used, but you could always use something similar. the washer
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Re: Mousetrap Vehicle B

Postby SirBobo » December 29th, 2011, 3:45 pm

Sunshine Ninja wrote:we had the same problem..... we switched to dvds and they work better.

Also... The rules say the trigger has 2 be vertical?


The trigger PENCIL has to be held vertically when pressing the metal/plastic bait pedal. Hope that cleared it up. :D
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Re: Mousetrap Vehicle B

Postby SirBobo » December 29th, 2011, 6:34 pm

There is no rule about what material to use for the car, right? (sorry double post) ಠ_ರೃ
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Re: Mousetrap Vehicle B

Postby Gemma W » January 2nd, 2012, 12:07 pm

SirBobo wrote:There is no rule about what material to use for the car, right?


No, the rules do not specify a material, except for the fixed point which must be a paperclip.

Also, do people suggest to make the car with an adjustable mechanism to allow for calibration, or to make it fixed and eliminate inconsistencies?
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Re: Mousetrap Vehicle B

Postby illusionist » January 2nd, 2012, 12:50 pm

My choice has always been to include some sort of a steering mechanism in the car. You may build the vehicle so that it will travel perfectly straight, but overtime it will be altered. A fixed body/axle doesn't allow for adjustment or correction later on.
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Re: Mousetrap Vehicle B

Postby Gemma W » January 9th, 2012, 12:10 pm

Thanks. We decided on a mechanism that will allow for slight changes in the axle's angle.
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Re: Mousetrap Vehicle B

Postby mousetrapfury » January 10th, 2012, 2:01 pm

What should you use other than sauter to attach the rod with the string to the mousetrap?

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Re: Mousetrap Vehicle B

Postby illusionist » January 10th, 2012, 3:45 pm

mousetrapfury wrote:What should you use other than sauter to attach the rod with the string to the mousetrap?

That's called a Pull Arm. The easiest way is to simply zip-tie it to the mousetrap and then maybe reinforce with hot glue. This is rather robust and also allows for easy removal if necessary.
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Re: Mousetrap Vehicle B

Postby Pauly_Rocks » January 10th, 2012, 6:47 pm

illusionist wrote:
mousetrapfury wrote:What should you use other than sauter to attach the rod with the string to the mousetrap?

That's called a Pull Arm. The easiest way is to simply zip-tie it to the mousetrap and then maybe reinforce with hot glue. This is rather robust and also allows for easy removal if necessary.


I'm using some clamps...not exactly sure what they're called but they're U-shaped and then they go through some sort of holding device and are attached with washers... I used them to clamp the rod onto the arm of the mousetrap... I'll find out the name of the clamps, sorry I didn't know! :(
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Re: Mousetrap Vehicle B

Postby chalker » January 10th, 2012, 8:04 pm

Pauly_Rocks wrote:
illusionist wrote:
mousetrapfury wrote:What should you use other than sauter to attach the rod with the string to the mousetrap?

That's called a Pull Arm. The easiest way is to simply zip-tie it to the mousetrap and then maybe reinforce with hot glue. This is rather robust and also allows for easy removal if necessary.


I'm using some clamps...not exactly sure what they're called but they're U-shaped and then they go through some sort of holding device and are attached with washers... I used them to clamp the rod onto the arm of the mousetrap... I'll find out the name of the clamps, sorry I didn't know! :(


You might also want to look at hose clamps: http://en.wikipedia.org/wiki/Hose_clamp

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Re: Mousetrap Vehicle B

Postby Pauly_Rocks » January 11th, 2012, 1:18 pm

You might also want to look at hose clamps: http://en.wikipedia.org/wiki/Hose_clamp

Yeah. those work well too. :)
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