PICTURES, SCORES, VIDEOS!!

Locked
DarthBuilder
Member
Member
Posts: 288
Joined: August 1st, 2017, 8:02 am
Division: Grad
State: IL
Has thanked: 0
Been thanked: 0

Re: PICTURES, SCORES, VIDEOS!!

Post by DarthBuilder »

Someone from IL broke 2400 yesterday
Deleted
sciencecat42
Member
Member
Posts: 86
Joined: March 14th, 2016, 7:07 pm
Has thanked: 0
Been thanked: 0

Re: PICTURES, SCORES, VIDEOS!!

Post by sciencecat42 »

Just to clarify, when you guys mention box beam/compression box, do you basically mean 4 main compression sticks but connected with bracing?
User avatar
MadCow2357
Exalted Member
Exalted Member
Posts: 774
Joined: November 19th, 2017, 9:09 am
Division: C
State: RI
Has thanked: 211 times
Been thanked: 56 times
Contact:

Re: PICTURES, SCORES, VIDEOS!!

Post by MadCow2357 »

sciencecat42 wrote:Just to clarify, when you guys mention box beam/compression box, do you basically mean 4 main compression sticks but connected with bracing?
Box beam refers to hollow compression members.

Compression box refers to 4 main compression members, aka the tower chimney.
MadCow2357's Userpage
Gallagher MS '19
Barrington HS '23
sciencecat42
Member
Member
Posts: 86
Joined: March 14th, 2016, 7:07 pm
Has thanked: 0
Been thanked: 0

Re: PICTURES, SCORES, VIDEOS!!

Post by sciencecat42 »

MadCow2357 wrote:
sciencecat42 wrote:Just to clarify, when you guys mention box beam/compression box, do you basically mean 4 main compression sticks but connected with bracing?
Box beam refers to hollow compression members.

Compression box refers to 4 main compression members, aka the tower chimney.
Ah I see.

Does box beam mean using sheets then? Otherwise I can't see how you would make it hollow.
User avatar
MadCow2357
Exalted Member
Exalted Member
Posts: 774
Joined: November 19th, 2017, 9:09 am
Division: C
State: RI
Has thanked: 211 times
Been thanked: 56 times
Contact:

Re: PICTURES, SCORES, VIDEOS!!

Post by MadCow2357 »

sciencecat42 wrote:
MadCow2357 wrote:
sciencecat42 wrote:Just to clarify, when you guys mention box beam/compression box, do you basically mean 4 main compression sticks but connected with bracing?
Box beam refers to hollow compression members.

Compression box refers to 4 main compression members, aka the tower chimney.
Ah I see.

Does box beam mean using sheets then? Otherwise I can't see how you would make it hollow.
Obviously you wouldn't roll it. I guess you could glue 4 long strips to make a box, or you could just drill a very long hole through the entire column (not a good idea)
MadCow2357's Userpage
Gallagher MS '19
Barrington HS '23
scottK2019
Member
Member
Posts: 7
Joined: April 7th, 2019, 6:58 am
Division: B
State: NJ
Has thanked: 0
Been thanked: 0

Re: PICTURES, SCORES, VIDEOS!!

Post by scottK2019 »

Ao far, highest 2870, box design boomilever with Div B spec, 2340 can be obtained; tube boomilever, with div B spec 2260.

Epoxy glue for key joint and foam polyurethane glue (Lowe's gorilla expansion glue, you have to remove the extra glue) for secondary joint. It would take 24 hour to develop full strength. You may need to plan 3-4 days to make one boomilever.
scottK2019
Member
Member
Posts: 7
Joined: April 7th, 2019, 6:58 am
Division: B
State: NJ
Has thanked: 0
Been thanked: 0

Re: PICTURES, SCORES, VIDEOS!!

Post by scottK2019 »

scioly2345 wrote:New York- Division B
1st- 9.54g holding 15kg
Any other Div B NY scores?
With Tube Boomilever, you may get 2200 above
scioly2345
Member
Member
Posts: 86
Joined: April 23rd, 2017, 7:20 pm
Division: C
State: NY
Pronouns: She/Her/Hers
Has thanked: 0
Been thanked: 0

Re: PICTURES, SCORES, VIDEOS!!

Post by scioly2345 »

scottK2019 wrote:
scioly2345 wrote:New York- Division B
1st- 9.54g holding 15kg
Any other Div B NY scores?
With Tube Boomilever, you may get 2200 above
By tube, do you mean a tower chimney type design?
2016-2019 Brother Joseph Fox Latin School
2020-2022 Kellenberg Memorial High School
2022 events - Bridge, Write It Do It, Wright Stuff
God Bless and Rest In Peace Len Joeris (Balsa Man)
“for the betterment of science”
AlexDeKuang
Member
Member
Posts: 10
Joined: January 25th, 2019, 11:00 am
Division: Grad
State: OK
Pronouns: She/Her/Hers
Has thanked: 0
Been thanked: 0
Contact:

Re: PICTURES, SCORES, VIDEOS!!

Post by AlexDeKuang »

scioly2345 wrote:
scottK2019 wrote:
scioly2345 wrote:New York- Division B
1st- 9.54g holding 15kg
Any other Div B NY scores?
With Tube Boomilever, you may get 2200 above
By tube, do you mean a tower chimney type design?
Nope its a literal tube. :)
AlexDeKuang
Member
Member
Posts: 10
Joined: January 25th, 2019, 11:00 am
Division: Grad
State: OK
Pronouns: She/Her/Hers
Has thanked: 0
Been thanked: 0
Contact:

Re: PICTURES, SCORES, VIDEOS!!

Post by AlexDeKuang »

scottK2019 wrote:Ao far, highest 2870, box design boomilever with Div B spec, 2340 can be obtained; tube boomilever, with div B spec 2260.

Epoxy glue for key joint and foam polyurethane glue (Lowe's gorilla expansion glue, you have to remove the extra glue) for secondary joint. It would take 24 hour to develop full strength. You may need to plan 3-4 days to make one boomilever.
Is the box design the compression box or a box made from sheets?
Locked

Return to “Boomilever B/C”

Who is online

Users browsing this forum: No registered users and 1 guest