Boomilever B/C

Locked
parikhy
Member
Member
Posts: 4
Joined: October 14th, 2017, 4:26 pm
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by parikhy » January 13th, 2019, 11:38 am

Any feedback on our boomilever wood sizes?. We're thinking to use 1/8 for the main members and then 3/32 for the bracing. Will it be sturdy enough? We're using a compression boomilever.

If not, what wood should we buy? We are only using balsa right now but we could buy bass wood if it would help.

In division C, by the way.
Last edited by parikhy on January 13th, 2019, 11:50 am, edited 1 time in total.

User avatar
TheChiScientist
Member
Member
Posts: 726
Joined: March 11th, 2018, 11:25 am
Division: Grad
State: IL
Pronouns: He/Him/His
Location: Contemplating yeeting myself off a cliff...
Has thanked: 6 times
Been thanked: 28 times

Re: Boomilever B/C

Post by TheChiScientist » January 13th, 2019, 11:50 am

MadCow2357 wrote:
PM2017 wrote:
DarthBuilder wrote:If you guys thought 3 minutes of sand loading is bad today at UChicago was 15 minutes for full load!
Rip stick-holders' knees.
Yes, big oof... Question: why didn't the Event Supervisors stop the teams from continuing to load?
Oh, the stick-holder wasn't nearly in as much pain as the person pushing down on the bootleg lever to release the sand at a rate of 1kg per minute...
Also sucked for our cameraman as he had to get a good angle to get us a 52 min slow-mo video after recording for 10 minutes straight. :lol:
Oh, also my boom held 10kg so my hands are still sore from holding down that lever for 10 minutes straight... :(
A Science Olympian from 2015 - 2019 CLCSO Alumni
Medal Count:30
IL PPP/Mission Assistant State Supervisor.
CLC Div. B Tournament Director.
President of The Builder Cult.
"A true Science Olympian embraces a life without Science Olympiad by becoming a part of Science Olympiad itself"- Me

User avatar
MadCow2357
Exalted Member
Exalted Member
Posts: 763
Joined: November 19th, 2017, 9:09 am
Division: C
State: RI
Location: Stark Industries Internship
Has thanked: 108 times
Been thanked: 49 times
Contact:

Re: Boomilever B/C

Post by MadCow2357 » January 13th, 2019, 12:52 pm

parikhy wrote:Any feedback on our boomilever wood sizes?. We're thinking to use 1/8 for the main members and then 3/32 for the bracing. Will it be sturdy enough? We're using a compression boomilever.

If not, what wood should we buy? We are only using balsa right now but we could buy bass wood if it would help.

In division C, by the way.
It all depends on bracing, but in normal cases 1/8 square is definitely not enough. At least 1/4" by 1/8" is needed for the main compression beams. I wouldn't go over 1/16" square for bracing.
MadCow2357's Userpage
2020 Events: Boomilever, Machines, Wright Stuff, and sadly not Gravity Vehicle
Gallagher MS '19
Barrington HS '23
Andrew Yang for VP!
In remembrance of Len Joeris (Balsa Man) and Dr. Gerard Putz - Don't cry because they are gone. Smile because they were here.

sciencecat42
Member
Member
Posts: 86
Joined: March 14th, 2016, 7:07 pm
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by sciencecat42 » January 13th, 2019, 2:11 pm

MadCow2357 wrote:
parikhy wrote:Any feedback on our boomilever wood sizes?. We're thinking to use 1/8 for the main members and then 3/32 for the bracing. Will it be sturdy enough? We're using a compression boomilever.

If not, what wood should we buy? We are only using balsa right now but we could buy bass wood if it would help.

In division C, by the way.
It all depends on bracing, but in normal cases 1/8 square is definitely not enough. At least 1/4" by 1/8" is needed for the main compression beams. I wouldn't go over 1/16" square for bracing.
Depends on design. If you are only using 2 main compression sticks, 1/8" is not enough. However for box designs (4 sticks), it is sufficient.

User avatar
TheChiScientist
Member
Member
Posts: 726
Joined: March 11th, 2018, 11:25 am
Division: Grad
State: IL
Pronouns: He/Him/His
Location: Contemplating yeeting myself off a cliff...
Has thanked: 6 times
Been thanked: 28 times

Re: Boomilever B/C

Post by TheChiScientist » January 13th, 2019, 4:46 pm

Is there a rule against a Boomilever being tiered due to it being over 45cm?????? I received a tier for this yet as I review the construction parameters there is no such rule! Only Section 3 Subsection C states "The Boomilever must support the Loading Assembly (5.b.) at the loading point which must be between 40 cm and 45 cm from the testing wall (4.Part II.e.ii.)." but my Boomilever was in compliance with this rule! :evil: Am I missing something!! Please help! :cry:
A Science Olympian from 2015 - 2019 CLCSO Alumni
Medal Count:30
IL PPP/Mission Assistant State Supervisor.
CLC Div. B Tournament Director.
President of The Builder Cult.
"A true Science Olympian embraces a life without Science Olympiad by becoming a part of Science Olympiad itself"- Me

Vstorm34
Member
Member
Posts: 14
Joined: July 19th, 2018, 8:25 am
Division: C
State: VA
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by Vstorm34 » January 13th, 2019, 4:51 pm

TheChiScientist wrote:Is there a rule against a Boomilever being tiered due to it being over 45cm?????? I received a tier for this yet as I review the construction parameters there is no such rule! Only Section 3 Subsection C states "The Boomilever must support the Loading Assembly (5.b.) at the loading point which must be between 40 cm and 45 cm from the testing wall (4.Part II.e.ii.)." but my Boomilever was in compliance with this rule! :evil: Am I missing something!! Please help! :cry:
As far as I am aware there is no such rule that prohibits that.

sciolyperson1
Member
Member
Posts: 678
Joined: April 23rd, 2018, 7:13 pm
Division: C
State: NJ
Pronouns: He/Him/His
Location: WW-P HSN
Has thanked: 40 times
Been thanked: 105 times

Re: Boomilever B/C

Post by sciolyperson1 » January 13th, 2019, 5:04 pm

TheChiScientist wrote:Is there a rule against a Boomilever being tiered due to it being over 45cm?????? I received a tier for this yet as I review the construction parameters there is no such rule! Only Section 3 Subsection C states "The Boomilever must support the Loading Assembly (5.b.) at the loading point which must be between 40 cm and 45 cm from the testing wall (4.Part II.e.ii.)." but my Boomilever was in compliance with this rule! :evil: Am I missing something!! Please help! :cry:
If it's over 45cm, then its not betwen 40 and 45, so yes, you can get tiered.
WW-P HSN '22, Community '18
'20: Gravity - Boomi - WIDI - PPP

Nats:
Team - 3rd '18, '19
Roller - 1st '19
Mystery - 3rd '19
Buggy - 4th '19, 5th '18
Mission - 3rd '17


MIT: Gravity - 1st '20
PUSO: PPP - 1st '20, WIDI -1st '20


Rate my tests!

User avatar
TheChiScientist
Member
Member
Posts: 726
Joined: March 11th, 2018, 11:25 am
Division: Grad
State: IL
Pronouns: He/Him/His
Location: Contemplating yeeting myself off a cliff...
Has thanked: 6 times
Been thanked: 28 times

Re: Boomilever B/C

Post by TheChiScientist » January 13th, 2019, 5:12 pm

sciolyperson1 wrote:
TheChiScientist wrote:Is there a rule against a Boomilever being tiered due to it being over 45cm?????? I received a tier for this yet as I review the construction parameters there is no such rule! Only Section 3 Subsection C states "The Boomilever must support the Loading Assembly (5.b.) at the loading point which must be between 40 cm and 45 cm from the testing wall (4.Part II.e.ii.)." but my Boomilever was in compliance with this rule! :evil: Am I missing something!! Please help! :cry:
If it's over 45cm, then its not betwen 40 and 45, so yes, you can get tiered.
My construction was set up so that my boom was 46cm long but I placed my cross wood where the loading block would rest at exactly 40cm-45cm! It's not made with the traditional wood placement at exactly the end of the boomilever. Thus a tier should not occur! Correct??
A Science Olympian from 2015 - 2019 CLCSO Alumni
Medal Count:30
IL PPP/Mission Assistant State Supervisor.
CLC Div. B Tournament Director.
President of The Builder Cult.
"A true Science Olympian embraces a life without Science Olympiad by becoming a part of Science Olympiad itself"- Me

User avatar
MadCow2357
Exalted Member
Exalted Member
Posts: 763
Joined: November 19th, 2017, 9:09 am
Division: C
State: RI
Location: Stark Industries Internship
Has thanked: 108 times
Been thanked: 49 times
Contact:

Re: Boomilever B/C

Post by MadCow2357 » January 13th, 2019, 5:56 pm

TheChiScientist wrote:Is there a rule against a Boomilever being tiered due to it being over 45cm?????? I received a tier for this yet as I review the construction parameters there is no such rule! Only Section 3 Subsection C states "The Boomilever must support the Loading Assembly (5.b.) at the loading point which must be between 40 cm and 45 cm from the testing wall (4.Part II.e.ii.)." but my Boomilever was in compliance with this rule! :evil: Am I missing something!! Please help! :cry:
No such rule, what in the world happened?
MadCow2357's Userpage
2020 Events: Boomilever, Machines, Wright Stuff, and sadly not Gravity Vehicle
Gallagher MS '19
Barrington HS '23
Andrew Yang for VP!
In remembrance of Len Joeris (Balsa Man) and Dr. Gerard Putz - Don't cry because they are gone. Smile because they were here.

Carrot
Member
Member
Posts: 32
Joined: January 8th, 2018, 8:16 am
Division: Grad
State: OH
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by Carrot » January 13th, 2019, 6:05 pm

TheChiScientist wrote:Is there a rule against a Boomilever being tiered due to it being over 45cm?????? I received a tier for this yet as I review the construction parameters there is no such rule! Only Section 3 Subsection C states "The Boomilever must support the Loading Assembly (5.b.) at the loading point which must be between 40 cm and 45 cm from the testing wall (4.Part II.e.ii.)." but my Boomilever was in compliance with this rule! :evil: Am I missing something!! Please help! :cry:
Pretty sure that as long as the center of the loading block is within 40 to 45cm you should be good. If your boomi goes over 45cm but has the center of loading block within the range, you should not get tiered.

Locked

Return to “Boomilever B/C”

Who is online

Users browsing this forum: Google [Bot] and 2 guests