Rotor Egg Drop B

Locked
mwloveslm
Member
Member
Posts: 60
Joined: October 30th, 2012, 6:31 pm
Division: C
State: CA
Location: MLHS from WCMS
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by mwloveslm » April 27th, 2013, 9:29 pm

Beastybob12345 wrote:
mwloveslm wrote:
Beastybob12345 wrote:Hehe, yea, I'm surprised you remembered. :)
I though our egg was completely cracked though, the device landed on its side. :?
:D haha yeah i remembered. ...what about state? And yeah i always think that...its scary :shock:
Hehe, at States, they dropped indoors, luckily. We got 4th.
Yea haha I was there....haha mine did pretty good alsooo..(:
Livin' the Cali Lyfe (:
CHURCHILL MS
Build Events <3 <3

User avatar
sofan
Member
Member
Posts: 92
Joined: November 5th, 2012, 6:24 pm
Division: B
State: TX
Location: At my laptop....
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by sofan » April 28th, 2013, 4:43 pm

has anyone tried a triangular shaped blade? Mine worked really well. Just throwing ideas out there.
New school year! New scioly season! Another year to do something great!

2013 galveston regionals:
rotor: 3rd
pic: 2nd(Texas event)
overall:3rd
2013 state:
rotor:4th
overall: 12th :I

ckssv07
Member
Member
Posts: 186
Joined: March 22nd, 2011, 7:33 am
Division: C
State: PA
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by ckssv07 » April 28th, 2013, 5:12 pm

Yeah i bulit one with 4 triangular blades and it does really well.

User avatar
Beastybob12345
Member
Member
Posts: 88
Joined: December 26th, 2012, 1:45 pm
Division: B
State: CA
Location: 38.6857°N 121.0822°W...
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by Beastybob12345 » April 28th, 2013, 6:01 pm

ckssv07 wrote:Yeah i bulit one with 4 triangular blades and it does really well.
I could try that sometime for next year's competition. Thanks for the idea. :D
[img]https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTcJRzoptYVlOdlPSHbLzFc37EVfbeQWvdCIdwEGVnkZvhxLbKBqA[/img]
Me----> Image

NorCal Science Olympiad is AWESOME!!!

Image

ckssv07
Member
Member
Posts: 186
Joined: March 22nd, 2011, 7:33 am
Division: C
State: PA
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by ckssv07 » April 29th, 2013, 7:51 am

If i drop my rotor and it gets say 4.5 seconds off of 5.5 meters, will the first 5.5 meters of a 15meter drop be the same 4.5 seconds, or will it be different. If so, is there anyway that an egg could drop 9meters in one second and still survive.

User avatar
Beastybob12345
Member
Member
Posts: 88
Joined: December 26th, 2012, 1:45 pm
Division: B
State: CA
Location: 38.6857°N 121.0822°W...
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by Beastybob12345 » April 29th, 2013, 10:40 am

At the moment, I'm using a sort of balsa wood framed, trapezoid-shaped blades and covered them with plastic wrap. It's really light. I think it's only like 12 grams or something like that. It drops fairly slowly too. Any ideas on how I can make it lighter/slower?
[img]https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTcJRzoptYVlOdlPSHbLzFc37EVfbeQWvdCIdwEGVnkZvhxLbKBqA[/img]
Me----> Image

NorCal Science Olympiad is AWESOME!!!

Image

User avatar
sofan
Member
Member
Posts: 92
Joined: November 5th, 2012, 6:24 pm
Division: B
State: TX
Location: At my laptop....
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by sofan » April 29th, 2013, 5:10 pm

Beastybob12345 wrote:At the moment, I'm using a sort of balsa wood framed, trapezoid-shaped blades and covered them with plastic wrap. It's really light. I think it's only like 12 grams or something like that. It drops fairly slowly too. Any ideas on how I can make it lighter/slower?
replace the balsa wood with carbon fiber rods. they are durable and light.
New school year! New scioly season! Another year to do something great!

2013 galveston regionals:
rotor: 3rd
pic: 2nd(Texas event)
overall:3rd
2013 state:
rotor:4th
overall: 12th :I

mwloveslm
Member
Member
Posts: 60
Joined: October 30th, 2012, 6:31 pm
Division: C
State: CA
Location: MLHS from WCMS
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by mwloveslm » April 29th, 2013, 5:18 pm

sofan wrote:
Beastybob12345 wrote:At the moment, I'm using a sort of balsa wood framed, trapezoid-shaped blades and covered them with plastic wrap. It's really light. I think it's only like 12 grams or something like that. It drops fairly slowly too. Any ideas on how I can make it lighter/slower?
replace the balsa wood with carbon fiber rods. they are durable and light.
Yes they are, but they are also very flimsy...
Livin' the Cali Lyfe (:
CHURCHILL MS
Build Events <3 <3

User avatar
sofan
Member
Member
Posts: 92
Joined: November 5th, 2012, 6:24 pm
Division: B
State: TX
Location: At my laptop....
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by sofan » April 29th, 2013, 5:34 pm

mwloveslm wrote:
sofan wrote:
Beastybob12345 wrote:At the moment, I'm using a sort of balsa wood framed, trapezoid-shaped blades and covered them with plastic wrap. It's really light. I think it's only like 12 grams or something like that. It drops fairly slowly too. Any ideas on how I can make it lighter/slower?
replace the balsa wood with carbon fiber rods. they are durable and light.
Yes they are, but they are also very flimsy...
noooooo,not always. really depend on the size. i got the 1 mm and its not flimsy after i built it.
New school year! New scioly season! Another year to do something great!

2013 galveston regionals:
rotor: 3rd
pic: 2nd(Texas event)
overall:3rd
2013 state:
rotor:4th
overall: 12th :I

sr243
Member
Member
Posts: 138
Joined: January 15th, 2008, 4:53 pm
Division: C
State: WI
Location: WI
Has thanked: 0
Been thanked: 0

Re: Rotor Egg Drop B

Post by sr243 » April 29th, 2013, 5:41 pm

ckssv07 wrote:If i drop my rotor and it gets say 4.5 seconds off of 5.5 meters, will the first 5.5 meters of a 15meter drop be the same 4.5 seconds, or will it be different. If so, is there anyway that an egg could drop 9meters in one second and still survive.
The first 5.5m of the 15m will be the same. It is not like physics change when you are 10m higher. However, the 10m after the initial 5.5m may not be at the same rate as the 5.5m. I am very confused at how it drops 9m in one second. That is very fast to the point that the device would be like a rock. Your maximum dropping rate should be at most 1s per 3m and that is fast. If you are somehow saying the first 5.5m of the 15m takes 4.5 seconds and the 9.5m takes 1s, I don't think that is possible unless your device breaks at 5.5m for whatever reason. The device must be dropping at 4m/s at 5.5m to drop 9m in a second (assuming 9.8m/s acceleration and no drag). At this point, it is basically like an egg in a cup free falling from 10m so yes, it would break. I am not sure if I misinterpreted your question but I am not too sure what you are asking (because the 2nd part of the question seems impossible unless your device breaks?). I think eggs can withstand around a fall of 5m/s but I haven't tested the limits of that. However, if you want to be competitive, you should make sure your drop rate is consistent and slow (1s/2m is a good starting goal).

Locked

Return to “2013 Build Events”

Who is online

Users browsing this forum: No registered users and 1 guest