Boomilever B/C

dankdecidueye · Post by **dankdecidueye** » Thu Dec 19, 2019 4:54 pm

wow that’s a lot lmao

donutsandcupcakes · Post by **donutsandcupcakes** » Mon Dec 30, 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

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:)

knightmoves · Post by **knightmoves** » Mon Dec 30, 2019 11:13 am

donutsandcupcakes wrote: ↑Mon Dec 30, 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: ↑Mon Dec 30, 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.

donutsandcupcakes · Post by **donutsandcupcakes** » Mon Dec 30, 2019 1:14 pm

knightmoves wrote: ↑Mon Dec 30, 2019 11:13 am
donutsandcupcakes wrote: ↑Mon Dec 30, 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: ↑Mon Dec 30, 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.

Sciolyperson1's Userpage · Post by **sciolyperson1** » Mon Dec 30, 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.

donutsandcupcakes · Post by **donutsandcupcakes** » Tue Dec 31, 2019 5:18 am

sciolyperson1 wrote: ↑Mon Dec 30, 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?

knightmoves · Post by **knightmoves** » Tue Dec 31, 2019 7:14 am

donutsandcupcakes wrote: ↑Tue Dec 31, 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.

donutsandcupcakes · Post by **donutsandcupcakes** » Tue Dec 31, 2019 8:59 am

knightmoves wrote: ↑Tue Dec 31, 2019 7:14 am
donutsandcupcakes wrote: ↑Tue Dec 31, 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.

Sciolyperson1's Userpage · Post by **sciolyperson1** » Tue Dec 31, 2019 1:27 pm

donutsandcupcakes wrote: ↑Tue Dec 31, 2019 5:18 am
sciolyperson1 wrote: ↑Mon Dec 30, 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.

dankdecidueye · Post by **dankdecidueye** » Thu Jan 02, 2020 2:11 pm

is going for max load worth it this year or no

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