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by fishman100
February 15th, 2013, 5:53 pm
Forum: 2013 Build Events
Topic: Gravity Vehicle C
Replies: 426
Views: 46173

Re: Gravity Vehicle C

So Stingray355 what is your average score Don't know about his average score but the winning score at the Tiger Invite was about 250, if I recall. Are teams adjusting the length of the car to match a certain launch height for a given distance or does everyone have just 1 care for every height? We'r...
by fishman100
February 5th, 2013, 2:48 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 622
Views: 65492

Re: Boomilever B/C

I finally got my hands on some 3/32" sq basswood for the tension members, but when I tried to bend it I found that it was rather bendy. Based on my previous designs, I found that the tensions bent a lot, however I did not use basswood for any past t-members. Is this characteristic of basswood or sho...
by fishman100
January 8th, 2013, 8:13 pm
Forum: Announcements
Topic: State of the Wiki: December 2012
Replies: 43
Views: 2744

Re: State of the Wiki: December 2012

Just curious but why are pages such as Junkyard Challenge 2011 in the "Needs Work" category? It (along with others such as Balloon Race) haven't been events for a few years now, and if they return I'm guessing they won't be similar to the aforementioned pages (especially if it's a building event). O...
by fishman100
December 15th, 2012, 7:56 am
Forum: 2013 Build Events
Topic: Gravity Vehicle C
Replies: 426
Views: 46173

Re: Gravity Vehicle C

Does anyone have anyone have any ideas for making sure your ramp is lined up with the dot. Because when we run our car it is always 2-5 cm to the right or left of the dot. So any ideas? According to rule 4b, the center of the Start Line is marked and that mark is perpendicular to the Target point, ...
by fishman100
December 4th, 2012, 5:41 pm
Forum: 2013 Build Events
Topic: Gravity Vehicle C
Replies: 426
Views: 46173

Re: Gravity Vehicle C

Last year I noticed tons of wooden ramps, and nearly no ramps constructed out of metal. Is there any particular reason for this? Wouldn't it be easier and smoother to just place some sheet metal with supports on the bottom? I'm not sure if I saw the same things as you but we personally (and some ot...
by fishman100
October 22nd, 2012, 6:28 pm
Forum: Boomilever B/C
Topic: Ongoing Contest(Scores)
Replies: 366
Views: 37329

Re: Ongoing Contest(Scores)

To make you all feel better about your scores, here's my first boom of the year: Mass: 5.97 g Mass held: 120 g Efficiency: 26.80 :P (Broke when I put the bucket on, so I recorded the mass of the loading block) Second boom: Mass: 6.62 g Mass held: 1.77 kg Efficiency: 267.37 Still need a lot of improv...
by fishman100
October 12th, 2012, 2:58 pm
Forum: Feedback
Topic: Season 2013 - Site suggestions
Replies: 111
Views: 9610

Re: Season 2013 - Site suggestions

Is it possible to create subforums within each event in the Image Gallery? Liked it better that way (it's also more organized).

Speaking of which, were there more uploads when the gallery was being revamped? I've seen some pictures that I'm 99% sure I've never seen before.
by fishman100
October 10th, 2012, 8:08 pm
Forum: 2013 Build Events
Topic: Gravity Vehicle C
Replies: 426
Views: 46173

Re: Gravity Vehicle C

Currently I'm trying to compare last year's scores to this year's scoring formula to see what a "good score" from last year is this year (I'm assuming that the height of the ramp is 100 cm when I put scores from last year through this year's formula). I'm also trying to run some numbers through this...
by fishman100
October 7th, 2012, 7:53 am
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 622
Views: 65492

Re: Boomilever B/C

I don't know about 2008, but I believe that the winning efficiency in 2007 was also around 2500; if memory serves it weighed 6.18 grams and held full. The 2nd place boom weighed ~5g and held ~10kg. So, do your schools typically keep their best devices to start from when an event comes around again o...
by fishman100
September 29th, 2012, 6:42 pm
Forum: 2013 Build Events
Topic: Gravity Vehicle C
Replies: 426
Views: 46173

Re: Gravity Vehicle C

Now with a design like that, how do you prevent the bearing from slipping out of the holder? The image I've linked to above shows a a screw used to tighten the wood and grasp the bearing. Any other options? A couple self-threading set screws coming in from the top and bottom of the wooden holder mi...

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