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Re: Ongoing Contest(Scores)
Posted: April 21st, 2013, 2:26 pm
by sr243
Results for Illinois
http://avogadro.ws/hosted/il-state-b/public/results
seems like Daniel Wright who is the 1st place team
Re: Ongoing Contest(Scores)
Posted: April 21st, 2013, 3:40 pm
by UQOnyx
S4BB wrote:Back from Illinois State. Our boom broke early, and we ended up 3rd with a 1275 (7.92g holding 10098). I heard from one of our parents that the winning boom had a score of 2029.
Wow! Since it was coming from a parent, who may or may not have known the exact details, I am a bit skeptical, bit still if it is true, WOW! Congrats btw
Re: Ongoing Contest(Scores)
Posted: April 22nd, 2013, 4:32 pm
by balsa
can anyone post a photo of a tube boomilever, i think i understand how it works but i haven't seen one yet
thanks!
Re: Ongoing Contest(Scores)
Posted: April 22nd, 2013, 8:01 pm
by Rath4o1
Scores for RI
1st CranstonHigh School East 711.5( ME
my worst boom too!)
2nd SmithfieldHigh School 680.93
3rd BarringtonHigh School 226.8
4th BishopHendrickenHigh School 192.46
5th Providence Career and Technical Academy 186.62
6th CranstonHigh School West 168.96
Re: Ongoing Contest(Scores)
Posted: April 23rd, 2013, 12:28 pm
by GeorgeInNePa
GeorgeInNePa wrote:GeorgeInNePa wrote:GeorgeInNePa wrote:"Tube" Boomilever
First try:
Boom weight-10.95g
Held-7714g
Efficiency Score- 704.5
Mounting block failure.
Second try:
Boom weight-12.25
Held-11316g
Efficiency Score-924
Tube failure due to alignment issues.
Third try will be under 12g and will hopefully hold more. We are learning with each build.
Third try (the boom from the first try with a new mounting block):
Boom weight-11.08
Held- 11512g
Efficiency Score- 1038.99
Tube failure.
Fourth try:
Boom weight- 11.46g
Held- 12069
Efficiency Score- 1053.14
Tube failure, in a way which you would expect with a tube in compression.
I "think" we can get this design over 1100, but not too much higher. We can remove a bit more weight, maybe get it down to 11.0g, but since we don't have a lot of time this is what it is.
I think that the weight held should actually be a bit higher, since we are using very large aquarium gravel and it takes a lot of time to get the weight in the bucket. A sand dispenser like they use at the larger events would allow more weight to be transferred before tube failure.
New distal end block design and a very lightweight tube (3.8g)...
Fifth try:
Boom weight- 9.59g
Held- 11904g
Efficiency Score- 1241.29
This is the final design, we'll see how it goes on Friday.
Re: Ongoing Contest(Scores)
Posted: April 23rd, 2013, 3:57 pm
by GeorgeInNePa
UQOnyx wrote:Would anyone post a picture of a tube boomilever? I understand the basics, but I have never seen one before and might be a good example.
balsa wrote:can anyone post a photo of a tube boomilever, i think i understand how it works but i haven't seen one yet
thanks!
I will on Thursday...
Re: Ongoing Contest(Scores)
Posted: April 23rd, 2013, 9:41 pm
by mwloveslm
GeorgeInNePa wrote:UQOnyx wrote:Would anyone post a picture of a tube boomilever? I understand the basics, but I have never seen one before and might be a good example.
balsa wrote:can anyone post a photo of a tube boomilever, i think i understand how it works but i haven't seen one yet
thanks!
I will on Thursday...
Yeah ahaha I would like to see the pictures also
Re: Ongoing Contest(Scores)
Posted: April 25th, 2013, 6:28 pm
by GeorgeInNePa
mwloveslm wrote:GeorgeInNePa wrote:UQOnyx wrote:Would anyone post a picture of a tube boomilever? I understand the basics, but I have never seen one before and might be a good example.
balsa wrote:can anyone post a photo of a tube boomilever, i think i understand how it works but i haven't seen one yet
thanks!
I will on Thursday...
Yeah ahaha I would like to see the pictures also
Re: Ongoing Contest(Scores)
Posted: April 25th, 2013, 6:34 pm
by mwloveslm
wow nice....ok....do you think it might be possible for us to see a top view? If it's not a problem for you.....
Re: Ongoing Contest(Scores)
Posted: April 25th, 2013, 6:36 pm
by GeorgeInNePa
mwloveslm wrote:wow nice....ok....do you think it might be possible for us to see a top view? If it's not a problem for you.....
That's a pic of a broken one from Tuesday.
I'll get some pics of the competition boom tomorrow...
