Building materials (excluding covering)

User avatar
lonestar
Member
Member
Posts: 34
Joined: November 7th, 2010, 8:16 pm
Division: C
State: TX

Re: Building materials (excluding covering)

Post by lonestar » December 26th, 2010, 8:35 am

lllazar wrote:Can anyone suggest a good gram scale? And also, this is just for lulz, but what do you think of my school not willing to spend the club money (raised through bake sales, they give us 0) on a gram scale, or letting us borrow one of the schools, because they don't want us to sell drugs? Haha, and such im just buying my own...
I bought one off amazon. It was this one I believe. Less than $20, up to 1000g, .1g accuracy. That brand also has a scale with .01g accuracy but it only goes up to 100g so I got the one that I could use for other, heavier (non-aircraft) situations becuse I was in need of a digital scale anyway.

User avatar
lllazar
Member
Member
Posts: 839
Joined: November 19th, 2009, 7:20 pm
Division: C
State: IL
Location: Probably at my laptop, multitasking while on AJAX chat....

Re: Building materials (excluding covering)

Post by lllazar » December 26th, 2010, 10:15 am

Non aircraft huh? ;) Lol jk

But thanks i think ill get a .01 gram scale because i need it for tower and i'ts not too much more expensive.
2011 Season Events~

Fossils (Regionals ~1st) (State ~6th)
Towers (Regionals ~1st) (State ~3rd)
Helicopter (Regionals -3rd gahhh) (State ~5th)
Wind Power (Regionals ~1st) (State ~3rd TIERED!)

Hooray for getting everything i wanted?

jander14indoor
Member
Member
Posts: 1581
Joined: April 30th, 2007, 7:54 am

Re: Building materials (excluding covering)

Post by jander14indoor » December 26th, 2010, 7:44 pm

Music wire is hard, cold drawn wire, correct size is 0.020 to 0.025 inch. Paper clips aren't as hard, to be strong enough it needs to be thicker and heavier. It also won't fit int most common, appropriate rotor hangers for this event.

Most hobby shops carry a selection of music wire, .015 is about the smallest. And yes, you can get appropriate wire from a music store, solid steel guitar wire in appropriate diameter will work. You may need to straighten it though, and its a little more expensive.

Music wire came from wire used to string pianos. They carry a LOT of tension, so have to be good, consistent quality. They've also be come very cheap and affordable.

Jeff Anderson
Livonia, MI

User avatar
aubrey048
Exalted Member
Exalted Member
Posts: 270
Joined: January 8th, 2010, 9:43 am
Division: C
State: AL
Location: Rocket City

Re: Building materials (excluding covering)

Post by aubrey048 » January 25th, 2011, 3:34 pm

Is this a good dimension for balsa wood???
http://www.balsawoodinc.com/product/BWS001
Plotting the function of the universe for efficiency without your permission.

Projected 2011-2012 Events: Anatomy, Microbe Mission, Disease Detectives, Tower, Optics, Helicopter.
Past Events: Anatomy (7th), Helicopter (6th), Mission Possible (1st), Write It Do It (4th, 8th), Ornithology (5th).

User avatar
smartkid222
Exalted Member
Exalted Member
Posts: 774
Joined: June 22nd, 2008, 8:12 am
Division: C
State: NY
Location: Western Long Island

Re: Building materials (excluding covering)

Post by smartkid222 » January 25th, 2011, 5:05 pm

yes
Image 2008 NY BLG Champ
2010 NY Helicopter Champ

ironchef48
Member
Member
Posts: 15
Joined: January 23rd, 2010, 1:19 pm
Division: C
State: IL

Re: Building materials (excluding covering)

Post by ironchef48 » January 30th, 2011, 5:58 am

I got a Triton T2 scale at American Science and Surplus- it was only about $30- It works great and measures accuratly to .1gand upo to 300g. At an invitational they were only using a scale accurate to 1g- so this was a great way to know I was at the right mass.

User avatar
kjhsscioly
Exalted Member
Exalted Member
Posts: 517
Joined: January 16th, 2009, 11:55 am
Division: Grad
State: IL
Location: Chicago

Re: Building materials (excluding covering)

Post by kjhsscioly » March 16th, 2011, 4:10 pm

How can a scale be accurate to one gram? did it round down or up?

User avatar
lllazar
Member
Member
Posts: 839
Joined: November 19th, 2009, 7:20 pm
Division: C
State: IL
Location: Probably at my laptop, multitasking while on AJAX chat....

Re: Building materials (excluding covering)

Post by lllazar » March 17th, 2011, 1:45 pm

Well im assuming if the actual mass were <x.5 then it rounds down and if >x.5 then it rounds up. Where x is just an integer. But that's really bad especially considering how specific the scale should be for something like this event.
2011 Season Events~

Fossils (Regionals ~1st) (State ~6th)
Towers (Regionals ~1st) (State ~3rd)
Helicopter (Regionals -3rd gahhh) (State ~5th)
Wind Power (Regionals ~1st) (State ~3rd TIERED!)

Hooray for getting everything i wanted?

thewinner
Member
Member
Posts: 110
Joined: March 18th, 2011, 12:18 pm
Division: B
State: NJ
Location: TGMS FTW

Re: Building materials (excluding covering)

Post by thewinner » March 18th, 2011, 6:53 pm

Yeah, accuracy to the nearest gram is nowhere near enough. I would recommend a 0.01g scale, as they are not too much more expensive than 0.1g ones and will help you minimize weight.
I win.

User avatar
kjhsscioly
Exalted Member
Exalted Member
Posts: 517
Joined: January 16th, 2009, 11:55 am
Division: Grad
State: IL
Location: Chicago

Re: Building materials (excluding covering)

Post by kjhsscioly » March 20th, 2011, 1:38 pm

I am pretty sure i bought my scale for 12 dollars online, with a 1/100th accuracy and a 100 gram limit. Really, that should bee all you need for this kind of event.

Locked

Return to “Helicopters C”

Who is online

Users browsing this forum: No registered users and 1 guest