Boomilever B/C

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Re: Boomilever B/C

Post 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 :P )
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Re: Boomilever B/C

Post 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.
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Re: Boomilever B/C

Post 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.
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Re: Boomilever B/C

Post by chinesesushi »

Yeah, I don't ever recommend using more than one hook. It's only going to make your boomilever heavier.
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Re: Boomilever B/C

Post by phil9047 »

How well do you think an efficiency of 1300 do in States?
Sine functions are quite odd, to be honest.
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Re: Boomilever B/C

Post by DoctaDave »

Probably top 5, but probably 3rd place at best.
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Re: Boomilever B/C

Post 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?
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Re: Boomilever B/C

Post 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?
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Re: Boomilever B/C

Post by iwonder »

I mean, the only thing the rules say it that you have to use wood, so yeah.
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Re: Boomilever B/C

Post by banana353 »

1- Do Event supervisors provide loading block.
2- If they do, do we have to assemble it...
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