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by zcshiner
February 5th, 2011, 11:44 am
Forum: Mission Possible C
Topic: Hydraulics Task
Replies: 8
Views: 3758

Re: Hydraulics Task

Where did you get your tubing to stretch over the syringes.
We used aquarium tubing.
by zcshiner
January 31st, 2011, 8:16 pm
Forum: 2011 Build Events
Topic: Mousetrap Vehicle C
Replies: 441
Views: 47778

Re: Mousetrap Vehicle C

Keeping up the theme, does anyone want to share the weight of their vehicle?
by zcshiner
January 26th, 2011, 8:25 pm
Forum: 2011 Build Events
Topic: Mousetrap Vehicle C
Replies: 441
Views: 47778

Re: Mousetrap Vehicle C

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.
by zcshiner
January 19th, 2011, 7:28 pm
Forum: Mission Possible C
Topic: Temperature Task
Replies: 123
Views: 22755

Re: Temperature Task

I was only able to heat about 5cm of Nichrome using a 6-volt lantern battery. What are you guys using for batteries?
We usually use rechargeable 7.2v RC batteries.
by zcshiner
January 18th, 2011, 6:08 pm
Forum: Mission Possible C
Topic: Blocks Task
Replies: 103
Views: 19210

Re: Blocks Task

I don't think there's any other way to stack blocks... Bad phrasing on my part. If one were to use a microswitch at the top level, assuming the blocks are being lowered or dropped, each would pass by that microswitch triggering it on its way down. That's no good. The microswitch should be triggered...
by zcshiner
January 18th, 2011, 2:35 pm
Forum: 2011 Build Events
Topic: Mousetrap Vehicle C
Replies: 441
Views: 47778

Re: Mousetrap Vehicle C

Hey guys, so, I'm running the mousetrap vehicle I made at school, and on it's way forward pushing the cup it's fine, but on it's way backwards it randomly curves. Also, is anyone we're using the wingnut design and for some reason the break isn't stopping the vehicle on time. The vehicle always pass...
by zcshiner
January 18th, 2011, 2:28 pm
Forum: Mission Possible C
Topic: Blocks Task
Replies: 103
Views: 19210

Re: Blocks Task

You could potentially use height, too. A microswitch at the level of the whole stack would do it.
That would be if you were stacking the blocks from the bottom up, right?
by zcshiner
January 16th, 2011, 11:40 am
Forum: 2011 Build Events
Topic: Mousetrap Vehicle C
Replies: 441
Views: 47778

Re: Mousetrap Vehicle C

I was referring to the fast release method I believe phoenix was referring to, in which the first trap (as I understand), pulls a hook, which pulls a loop attached to the axle. All of the mousetrap's force is released at once, and so the trap reaches it's natural state immediately; the car is stopp...
by zcshiner
January 13th, 2011, 6:03 pm
Forum: 2011 Build Events
Topic: Mousetrap Vehicle C
Replies: 441
Views: 47778

Re: Mousetrap Vehicle C

The question is: how do you trigger the second trap? Last year I achieved this two different ways. My first way used a linkage system so that when the first trap was at the end of it's travel, it pressed on this linkage, which in turn, pressed on the 'cheese' of the second trap. The second way was ...
by zcshiner
December 3rd, 2010, 5:55 pm
Forum: Mission Possible C
Topic: Sand Timer Task
Replies: 61
Views: 16237

Re: Sand Timer Task

So I have been reading rule M carefully, and I guess it is save to say that "electricity must not be used for further actions after the sand timer has started" could be interpreted as "electricity must not be used for further tasks after the sand timer has started" Am I correct in my thinking on this?

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