Mousetrap Vehicle C

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lllazar
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Re: Mousetrap Vehicle C

Post by lllazar » January 22nd, 2011, 7:49 pm

Well i have the bar idea down but will a longer bar increase power?
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Re: Mousetrap Vehicle C

Post by robotman » January 22nd, 2011, 7:54 pm

To a point.
The best combo I have found is that the string's knot when fully wrapped is directally above the spool on the axle
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Re: Mousetrap Vehicle C

Post by lllazar » January 23rd, 2011, 8:16 pm

O ya, 1 final question how do you guys attach a hook on to your axle to attach the drive string?
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Re: Mousetrap Vehicle C

Post by robotman » January 23rd, 2011, 8:18 pm

I take a thread spool and put a nail without the head into it.
than when i go to wind it i make sure i have a loop in my string so that once it runs out of string the car can continue to go forward without interference of the mousetraps
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Re: Mousetrap Vehicle C

Post by lllazar » January 23rd, 2011, 9:05 pm

Hmm that sounds like a plan. How long is the hook you put on the spool, i feel like it needs to be short but not too short. And btw, do you think a soldering iron would work for getting rid of excess vinyl on my LP records.
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Re: Mousetrap Vehicle C

Post by robotman » January 24th, 2011, 1:52 pm

This is a decent picture of mine.
Picture

Maybe a few centimeters long
And i have no experience with vinyl remover so...
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Re: Mousetrap Vehicle C

Post by zcshiner » January 26th, 2011, 8:25 pm

robotman09 wrote:One way I found to fix the movement was to add a U shaped piece of metal in for the wingnut to move along in
Did you buy that U channel, or did you make/bend that into shape? I have never seen aluminum U channel like that at my hardware store.

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Re: Mousetrap Vehicle C

Post by robotman » January 27th, 2011, 5:24 am

yea I bought it at my local store I think it was Lowes where I found it
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Re: Mousetrap Vehicle C

Post by lllazar » January 30th, 2011, 11:31 pm

Hmm i was wondering how can i reduce the friction between the axle and the car frame?
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Re: Mousetrap Vehicle C

Post by Primate » January 31st, 2011, 2:12 am

lllazar wrote:Hmm i was wondering how can i reduce the friction between the axle and the car frame?
Reduce the point of contact, or lubricate it. Try petroleum jelly for metal/plastic, wax for wood.
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