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Re: Boomilever B/C
Posted: December 19th, 2019, 4:54 pm
by dankdecidueye
wow that’s a lot lmao
Re: Boomilever B/C
Posted: December 30th, 2019, 7:51 am
by donutsandcupcakes
Weird question but if i have 4 sticks of wood, should i use the heavier 2 for compression or for tension? bc im going to have bracings in my compression but i dont if i should use the heavier sticks for tension membranes.. pls help
Also another question, for my 8 cm im thinking of making it 8.5 just to be safe, but am i making a mistake?
sorry i asked so many questions, but if u can help i would be grateful:)
Re: Boomilever B/C
Posted: December 30th, 2019, 11:13 am
by knightmoves
donutsandcupcakes wrote: ↑December 30th, 2019, 7:51 am
Weird question but if i have 4 sticks of wood, should i use the heavier 2 for compression or for tension? bc im going to have bracings in my compression but i dont if i should use the heavier sticks for tension membranes.. pls help
How does the maxiumum force you can exert on a stick in compression change with its length? How does the maximum force you can exert in tension change with the length of the stick? How do those things change with the cross section of the stick? Answer those questions, and you'll understand your answer.
donutsandcupcakes wrote: ↑December 30th, 2019, 7:51 am
Also another question, for my 8 cm im thinking of making it 8.5 just to be safe, but am i making a mistake?
No. You're right that you want to make it a little bigger than the rules to allow a safety margin (your ruler might not be the same as the ES's ruler. You might not build it right. It might not hang quite straight when you mount it on the test wall. etc. etc. Whether the right answer is 8.5cm, 8.2cm, or 9.0cm depends on how confident you are...
I think you'll see that if you calculate the extra mass you introduce by changing the width from 8.0 to 8.5cm, you'll find that it makes little difference.
Re: Boomilever B/C
Posted: December 30th, 2019, 1:14 pm
by donutsandcupcakes
knightmoves wrote: ↑December 30th, 2019, 11:13 am
donutsandcupcakes wrote: ↑December 30th, 2019, 7:51 am
Weird question but if i have 4 sticks of wood, should i use the heavier 2 for compression or for tension? bc im going to have bracings in my compression but i dont if i should use the heavier sticks for tension membranes.. pls help
How does the maxiumum force you can exert on a stick in compression change with its length? How does the maximum force you can exert in tension change with the length of the stick? How do those things change with the cross section of the stick? Answer those questions, and you'll understand your answer.
donutsandcupcakes wrote: ↑December 30th, 2019, 7:51 am
Also another question, for my 8 cm im thinking of making it 8.5 just to be safe, but am i making a mistake?
No. You're right that you want to make it a little bigger than the rules to allow a safety margin (your ruler might not be the same as the ES's ruler. You might not build it right. It might not hang quite straight when you mount it on the test wall. etc. etc. Whether the right answer is 8.5cm, 8.2cm, or 9.0cm depends on how confident you are...
I think you'll see that if you calculate the extra mass you introduce by changing the width from 8.0 to 8.5cm, you'll find that it makes little difference.
Ok thank you, and I'm planning to stick to the 8.5 cm just to be safe, like you said u never know what might happen on competition day.
Re: Boomilever B/C
Posted: December 30th, 2019, 8:13 pm
by sciolyperson1
Just a small prediction discussion: What will top 1 and top 6 scores be for MIT?
I'm thinking towards 2.7k for first and 2.0k for top 6.
Re: Boomilever B/C
Posted: December 31st, 2019, 5:18 am
by donutsandcupcakes
sciolyperson1 wrote: ↑December 30th, 2019, 8:13 pm
Just a small prediction discussion: What will top 1 and top 6 scores be for MIT?
I'm thinking towards 2.7k for first and 2.0k for top 6.
Isn't MIT an invitational, do people bring their good scoring boomilevers 2 invitationals?
Re: Boomilever B/C
Posted: December 31st, 2019, 7:14 am
by knightmoves
donutsandcupcakes wrote: ↑December 31st, 2019, 5:18 am
Isn't MIT an invitational, do people bring their good scoring boomilevers 2 invitationals?
Many do. There are some that like to keep their scoring potential hidden until a "real" competition, but lots of people show up to invitationals with whatever their current state of the art is.
Re: Boomilever B/C
Posted: December 31st, 2019, 8:59 am
by donutsandcupcakes
knightmoves wrote: ↑December 31st, 2019, 7:14 am
donutsandcupcakes wrote: ↑December 31st, 2019, 5:18 am
Isn't MIT an invitational, do people bring their good scoring boomilevers 2 invitationals?
Many do. There are some that like to keep their scoring potential hidden until a "real" competition, but lots of people show up to invitationals with whatever their current state of the art is.
Oh. I thought people kept their high scoring boomis for real competitions.
Re: Boomilever B/C
Posted: December 31st, 2019, 1:27 pm
by sciolyperson1
donutsandcupcakes wrote: ↑December 31st, 2019, 5:18 am
sciolyperson1 wrote: ↑December 30th, 2019, 8:13 pm
Just a small prediction discussion: What will top 1 and top 6 scores be for MIT?
I'm thinking towards 2.7k for first and 2.0k for top 6.
Isn't MIT an invitational, do people bring their good scoring boomilevers 2 invitationals?
Many treat MIT more as a national level competition rather than an invitational level one.
Re: Boomilever B/C
Posted: January 2nd, 2020, 2:11 pm
by dankdecidueye
is going for max load worth it this year or no