Boomilever B/C

[NotAPrez]

Boomilever B/C: Teams will design and build a Boomilever meeting requirements specified in the rules to achieve the highest structural efficiency.

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Past Threads: 2013, 2014, 2019, 2020

[sneepity]

No major rule changes, only some rules clarifications.

- Loading assembly can be assembled and disassembled, but must be put into the same order when assembled together again.

[cool hand luke]

any guesses what they meant by this one?

"The boomilever may not thrust back against the wall during loading"

doesn't a free body diagram show that's impossible?

[dholdgreve]

My thoughts exactly... The very definition of a boomilever REQUIRES it to "thrust back against the wall." I assume they mean that it cannot thrust back to the wall directly behind the mounting hook, although I cannot for the life of me understand why anyone would want to do that, and what advantage it might gain them... It just seems like extra words added to already overly complicated event rules.

[JonB]

My thoughts exactly... The very definition of a boomilever REQUIRES it to "thrust back against the wall." I assume they mean that it cannot thrust back to the wall directly behind the mounting hook, although I cannot for the life of me understand why anyone would want to do that, and what advantage it might gain them... It just seems like extra words added to already overly complicated event rules.

Yes, I also think you are correct in the assumption. I saw a design that did this years ago, but I cannot say it was superior to a design that does not.

[sneepity]

any guesses what they meant by this one?

"The boomilever may not thrust back against the wall during loading"

doesn't a free body diagram show that's impossible?

Isn't that what compression is?
But I think they meant something like it cannot lean on the testing wall for support.

[Godspeed]

any guesses what they meant by this one?

"The boomilever may not thrust back against the wall during loading"

doesn't a free body diagram show that's impossible?

Isn't that what compression is?
But I think they meant something like it cannot lean on the testing wall for support.

Yeah, I think that rule might need to be better explained

[sneepity]

any guesses what they meant by this one?

"The boomilever may not thrust back against the wall during loading"

doesn't a free body diagram show that's impossible?

Isn't that what compression is?
But I think they meant something like it cannot lean on the testing wall for support.

Yeah, I think that rule might need to be better explained

of course it does, it's unclear as to whether it really means
i was looking through and apparently it meant that the boom has to be pulling at the hook? ofc it would tho

[Godspeed]

Isn't that what compression is?
But I think they meant something like it cannot lean on the testing wall for support.

Yeah, I think that rule might need to be better explained

of course it does, it's unclear as to whether it really means
i was looking through and apparently it meant that the boom has to be pulling at the hook? ofc it would tho

Unless the Boomilevers bottom part is longer than the top part, but then again if it were like that it would probably break instantly, but I don't quite know

[sneepity]

Yeah, I think that rule might need to be better explained

of course it does, it's unclear as to whether it really means
i was looking through and apparently it meant that the boom has to be pulling at the hook? ofc it would tho

Unless the Boomilevers bottom part is longer than the top part, but then again if it were like that it would probably break instantly, but I don't quite know

hmm,isn't the compression longer than the tension? (or atleast when you measure it)?
edit:spelling mistakes