Boomilever B/C

Jim_R
Admin Emeritus
Admin Emeritus
Posts: 283
Joined: Sun May 13, 2001 4:22 pm
Division: Grad
Has thanked: 0
Been thanked: 1 time

Boomilever B/C

Post by Jim_R »

Discussion for Boomilever B/C

Boomilever Wiki
Image Gallery
2013 Early Discussion Thread
-The path of the Administrator is beset on all sides by the inequities of the selfish and the tyranny of evil men.

-Nothing\'s gonna get deleted. We\'re gonna be like three little Fonzies here. And what\'s Fonzie like? Come on, what\'s Fonzie like?
-Cool?
-Correctamundo. And that\'s what we\'re gonna be. We\'re gonna be cool. Now, I\'m gonna count to three, and when I count three, you let go of your mouse, and back away from the keyboard. But when you do it, you do it cool. Ready? One... two... three.
Top
thsom
Member
Member
Posts: 241
Joined: Tue Dec 27, 2011 10:26 am
Division: C
State: IL
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by thsom »

Who's as psyched for this event as I am?!
I've got a 1.5" binder already full with designs
Top
iwonder
Admin Emeritus
Admin Emeritus
Posts: 1115
Joined: Tue May 10, 2011 8:25 pm
Division: Grad
State: TX
Has thanked: 0
Been thanked: 1 time

Re: Boomilever B/C

Post by iwonder »

I'm not that psyched, but I do have a really nice compression member and I've done more research than imaginable :D
'If you're the smartest person in the room, you're in the wrong room' - Unknown
Top
noobforce
Member
Member
Posts: 70
Joined: Wed Mar 14, 2012 3:13 pm
Division: C
State: NJ
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by noobforce »

Read the Wiki and looking at Boomilever pictures in the Image Gallery. Any other helpful techniques to build a Boom besides using Zigzags for bracings?
Top
cngu23
Member
Member
Posts: 248
Joined: Sat Mar 12, 2011 4:57 pm
Division: C
State: MD
Has thanked: 0
Been thanked: 1 time

Re: Boomilever B/C

Post by cngu23 »

Haven't seen the rules sheet yet but do you attach it to the wall with bolts or make an overhang? I've seen both types used in the past.
Marriotts Ridge 11-
Walter Johnson 09-11
13 MD Regional/State
Material S (2/-) TPS (-/2)
12 MD Regional/State
Remote S(2/6) Water Q(2/4) Optics (-/5)
11 MD Regional
Remote S(2) Eco(2) D Planet(3)
Top
retired1
Member
Member
Posts: 676
Joined: Wed Jul 25, 2012 5:04 pm
Division: Grad
State: FL
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by retired1 »

iwonder wrote:I'm not that psyched, but I do have a really nice compression member and I've done more research than imaginable :D
What have you settled on? beam, I beam, box beam, truss, tube or????
Relative size??
Top
iwonder
Admin Emeritus
Admin Emeritus
Posts: 1115
Joined: Tue May 10, 2011 8:25 pm
Division: Grad
State: TX
Has thanked: 0
Been thanked: 1 time

Re: Boomilever B/C

Post by iwonder »

Now there's the trick, isn't it? I've got two ideas in mind, both significantly smaller than what most people will probably build, one's a tube, and the others a rectangle, however the catch with both is how I attatch them to the tension members. I expect to be told by everyone that sees it that I'm crazy ;)
Top
thsom
Member
Member
Posts: 241
Joined: Tue Dec 27, 2011 10:26 am
Division: C
State: IL
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by thsom »

Have these 'radical' designs been tested yet? If so, how well have they held up?
Top
fanjiatian
Member
Member
Posts: 244
Joined: Tue Mar 16, 2010 6:46 pm
Division: Grad
Has thanked: 0
Been thanked: 2 times

Re: Boomilever B/C

Post by fanjiatian »

How have you guys been connecting your tension and compression members?
If possible, draw a diagram (for my sake)
Top
retired1
Member
Member
Posts: 676
Joined: Wed Jul 25, 2012 5:04 pm
Division: Grad
State: FL
Has thanked: 0
Been thanked: 0

Re: Boomilever B/C

Post by retired1 »

iwonder wrote:Now there's the trick, isn't it? I've got two ideas in mind, both significantly smaller than what most people will probably build, one's a tube, and the others a rectangle, however the catch with both is how I attatch them to the tension members. I expect to be told by everyone that sees it that I'm crazy ;)
Not crazy. It depends on a number of things. The main problem with a compression member is buckling. If it is built very strong and rigid, it probably will weigh too much to be competitive. Bracing from the tension member will preclude or reduce buckling in the vertical directions. If the compression member is two beams, then very light X bracing between them will reduce / eliminate buckling in the horizontal direction.

So crazy, no if it is built light. Testing will tell.
Top

Return to “Boomilever B/C”