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Re: Boomilever B/C
Posted: March 5th, 2014, 5:50 pm
by iwonder
It's not very significant honestly, it's a small change (it's been harder at the start of the season to break 1000), but at the national level I wouldn't expect much change.
And ok, that probably means you either had a slight bend in the tension member at the base, or a weak tension member in general. (if it was overloaded due to a loading block issue, then it would seem weaker than it really is

)
Re: Boomilever B/C
Posted: March 7th, 2014, 6:49 pm
by banana353
The rules say there is one, two, and three mounting hooks on the testing wall for Division B. I'm wondering if we make 3 holes to hang on all these hooks or we can make the base long enough to fit in all three hooks.
Re: Boomilever B/C
Posted: March 7th, 2014, 6:54 pm
by iwonder
You could do either, but you don't have to use all three hooks, in fact, it's probably better if you don't. I'd recommend just using the center hook. Also, instead of a hole to slip around the hook (since the causes some unneeded stress in the base) try using a dowel that sits inside the hook.
Re: Boomilever B/C
Posted: March 7th, 2014, 7:45 pm
by chinesesushi
Yeah, I don't ever recommend using more than one hook. It's only going to make your boomilever heavier.
Re: Boomilever B/C
Posted: March 7th, 2014, 9:37 pm
by phil9047
How well do you think an efficiency of 1300 do in States?
Re: Boomilever B/C
Posted: March 7th, 2014, 11:22 pm
by DoctaDave
Probably top 5, but probably 3rd place at best.
Re: Boomilever B/C
Posted: March 8th, 2014, 9:44 am
by fanjiatian
Approaching competition time heh heh. Seems like it will be quite wet
I know that high humidity increases mass but can it weaken glue joints? Does it affect CA glue differently from wood glue?
Re: Boomilever B/C
Posted: March 8th, 2014, 6:26 pm
by katieb
I understand the weight factor but am I allowed to use a plain dowel rod (like from lowes) instead of a balsa dowel rod?
Re: Boomilever B/C
Posted: March 8th, 2014, 6:34 pm
by iwonder
I mean, the only thing the rules say it that you have to use wood, so yeah.
Re: Boomilever B/C
Posted: March 9th, 2014, 9:13 am
by banana353
1- Do Event supervisors provide loading block.
2- If they do, do we have to assemble it...