Search found 18 matches

by Gooblah
February 22nd, 2011, 5:50 pm
Forum: Mission Possible C
Topic: Blocks Task
Replies: 103
Views: 26202

Re: Blocks Task

So the team's come up with a few ideas: 1) Stolen from soinc.org: Paper clips between each block, and then solenoid pulls out the paper clips. The blocks fall onto each other and stack, ostensibly doing...something. 2) Drill a hole through the blocks and stick a dowel in there. The dowel starts hori...
by Gooblah
February 22nd, 2011, 6:32 am
Forum: Mission Possible C
Topic: Circular to Linear Task
Replies: 89
Views: 26267

Re: Circular to Linear Task

Originally my team was planning on running a simple Lego piston, but that just seems iffy right now. Regardless, we need an alternative. The way I interpreted the task was conversion of angular velocity to linear velocity - so a piston would be the rotating piece causing the arm to move forwards and...
by Gooblah
September 21st, 2010, 6:34 pm
Forum: 2011 Build Events
Topic: Mousetrap Vehicle C
Replies: 441
Views: 66200

Re: Mousetrap Vehicle C

This may be a stupid question, but how are you guys attaching your lever arm to your mousetraps? last year we had a really inelegant and weighty hotglue-string solution, and we can't seem to find dowels that can bridge the two lever arms to superglue without weighing the car down...
by Gooblah
May 3rd, 2010, 8:15 am
Forum: 2010 Invitationals, Regionals, and States
Topic: Michigan 2010
Replies: 187
Views: 32116

Re: Michigan 2010

My team and I had a lot of fun with some post-event building. If you were near the river around 3:30 - 4:30, you might have seen about seven kids playing around with paper boats, eventually progressing to a dowel raft (about 9" x 9") with a duct-tape deck, a mast with our team's flag, and ...
by Gooblah
April 8th, 2010, 8:14 am
Forum: 2010 Build Events
Topic: Mousetrap Vehicle C
Replies: 347
Views: 53283

Re: Mousetrap Vehicle C

Alright, so I managed to finish building the mousetrap vehicle, but with one significant problem: it doesn't go backward. :lol: Which is odd. The winding is correct (clockwise -> once around pin -> counter clockwise), but when I release the lever arm it simply stops halfway. When I push the lever a...
by Gooblah
April 7th, 2010, 2:56 pm
Forum: 2010 Build Events
Topic: Mousetrap Vehicle C
Replies: 347
Views: 53283

Re: Mousetrap Vehicle C

Alright, so I managed to finish building the mousetrap vehicle, but with one significant problem: it doesn't go backward. :lol: Which is odd. The winding is correct (clockwise -> once around pin -> counter clockwise), but when I release the lever arm it simply stops halfway. When I push the lever ar...
by Gooblah
March 30th, 2010, 4:42 pm
Forum: 2010 Build Events
Topic: Mousetrap Vehicle C
Replies: 347
Views: 53283

Re: Mousetrap Vehicle C

Nah, not really... I didn't make my new car's frame a solid piece of wood, I basically put together a bunch of bars... a lot less mass. Dam, I gotta stop helping in-state competition... Ah, sorry to make you compromise your morals in that manner. :( Either way, I think I've got a solid design down,...
by Gooblah
March 28th, 2010, 2:38 pm
Forum: 2010 Build Events
Topic: Mousetrap Vehicle C
Replies: 347
Views: 53283

Re: Mousetrap Vehicle C

Ohhhhhh! :mrgreen: Thanks so much, that makes a lot more sense, alright. Finally, did anyone use construction materials besides balsa? From prior experience, it's a pain to get parallel axles...I was considering hot-gluing some lego pieces down to ensure the axles were parallel, and then swiss-chee...
by Gooblah
March 28th, 2010, 2:19 pm
Forum: 2010 Build Events
Topic: Mousetrap Vehicle C
Replies: 347
Views: 53283

Re: Mousetrap Vehicle C

for the third method all motion comes from one axle your axle and string would look like this ---------------------|| ********************-|| ---------------------|| where * is string and -|| is the pin you would wrap the string one direction on the axle than loop it around the pin and continue wra...
by Gooblah
March 28th, 2010, 1:53 pm
Forum: 2010 Build Events
Topic: Mousetrap Vehicle C
Replies: 347
Views: 53283

Re: Mousetrap Vehicle C

Well, my district beasted at Regionals, taking 5/8 spots to go onto states; our two middle schools and three high schools. Even made the front page of the local big city's newspaper ahahahah. :lol: Cool stuff. Anyways, we were unable to participate in Mousetrap this year at Regionals because the car...

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