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Re: Boomilever B/C
Posted: October 30th, 2018, 10:27 am
by rschmitz
dholdgreve wrote:rschmitz wrote:I built the testing wall, however I am concerned about how far out the inside diameter of the j-hook should be. It only mentions the opening needs to be 2.5cm from the wall. I bought the J-hook from Lowes. It has a straight part to it before it curves. The parameters do not say how long that can be. In particular the distance from the wall to the inside diameter of the j-hook distance can change due to style of J hook. Mine is 4.4cm from wall to inside of Jhook.
I believe the rules go into pretty deep detail, identifying the exact sku # and manufacturer of the specified hook, so technically they should all be the same, but you are correct, there will always be those out there that think that all 1/4" J hooks are the same. The only way to be sure is to check with the E/C well before the competition for his specific hook dimensions.
Thank you, somehow I missed that. I looked at Lowes and the stock number is not exactly the same. Checked Amazon and they want $4.95 for each J hook. did a google search, found them for $0.50 at the following website. I ordered 12 and payed $13 in shipping (still better than $5 each)
https://www.hardwareworld.com/pc44398/J ... nc-1-4-x-4
Once I get these in I will check to see if the Lowes J hooks are an "exact equivalent" as stated in 5.a.ii
Re: Boomilever B/C
Posted: October 30th, 2018, 5:18 pm
by DarthBuilder
What scores do you guys think will medal at invitations from 6-1 places
Re: Boomilever B/C
Posted: October 30th, 2018, 7:15 pm
by TheChiScientist
DarthBuilder wrote:What scores do you guys think will medal at invitations from 6-1 places
I am thinking it will depend by state and their competitiveness...
Competitive states: 800-1100
Normal states: 700-1000
Not so competitive states: 600-900
What I wanna know is if teams are going for the max load or if they are going less weight when making their booms...
Re: Boomilever B/C
Posted: October 30th, 2018, 7:56 pm
by cheese
TheChiScientist wrote:
What I wanna know is if teams are going for the max load or if they are going less weight when making their booms...
Both. I think that most go for max weight, and bring the mass of their boom down while continuing to get max weight.
Re: Boomilever B/C
Posted: October 30th, 2018, 8:20 pm
by DarthBuilder
TheChiScientist wrote:DarthBuilder wrote:What scores do you guys think will medal at invitations from 6-1 places
I am thinking it will depend by state and their competitiveness...
Competitive states: 800-1100
Normal states: 700-1000
Not so competitive states: 600-900
What I wanna know is if teams are going for the max load or if they are going less weight when making their booms...
I would definitely say max load because going lower is at risk of you getting the penalty if you don’t hold at least 3kg
Re: Boomilever B/C
Posted: October 31st, 2018, 6:46 am
by dholdgreve
TheChiScientist wrote:DarthBuilder wrote:What scores do you guys think will medal at invitations from 6-1 places
I am thinking it will depend by state and their competitiveness...
Competitive states: 800-1100
Normal states: 700-1000
Not so competitive states: 600-900
What I wanna know is if teams are going for the max load or if they are going less weight when making their booms...
Years ago, they used to give a bonus for carrying a full load. Not the case this year. Based on that, carrying the full load means you have overbuilt, and it could probably be lighter, thus scoring higher. Obviously, the very most efficient design will be one where every piece in the boom reaches its full potential and explodes all at once when a load of 14.9999999 KG is reached. This will be our goal this year!
Re: Boomilever B/C
Posted: October 31st, 2018, 9:44 am
by MadCow2357
dholdgreve wrote:
Years ago, they used to give a bonus for carrying a full load. Not the case this year. Based on that, carrying the full load means you have overbuilt, and it could probably be lighter, thus scoring higher. Obviously, the very most efficient design will be one where every piece in the boom reaches its full potential and explodes all at once when a load of 14.9999999 KG is reached. This will be our goal this year!
Why not 15000g, if I may ask? I know this is probably a stupid question...
Re: Boomilever B/C
Posted: October 31st, 2018, 9:54 am
by TheChiScientist
MadCow2357 wrote:dholdgreve wrote:
Years ago, they used to give a bonus for carrying a full load. Not the case this year. Based on that, carrying the full load means you have overbuilt, and it could probably be lighter, thus scoring higher. Obviously, the very most efficient design will be one where every piece in the boom reaches its full potential and explodes all at once when a load of 14.9999999 KG is reached. This will be our goal this year!
Why not 15000g, if I may ask? I know this is probably a stupid question...
Because that means that the boom can hold more. Thus it's not at it's the best efficiency of a weight to mass ratio.
Re: Boomilever B/C
Posted: October 31st, 2018, 10:07 am
by dholdgreve
MadCow2357 wrote:dholdgreve wrote:
Years ago, they used to give a bonus for carrying a full load. Not the case this year. Based on that, carrying the full load means you have overbuilt, and it could probably be lighter, thus scoring higher. Obviously, the very most efficient design will be one where every piece in the boom reaches its full potential and explodes all at once when a load of 14.9999999 KG is reached. This will be our goal this year!
Why not 15000g, if I may ask? I know this is probably a stupid question...
OK... ya got me!... I guess if every piece of the boom exploded at exactly 15.000000 KG, you'd win!
Re: Boomilever B/C
Posted: October 31st, 2018, 12:09 pm
by rschmitz
dholdgreve wrote:MadCow2357 wrote:dholdgreve wrote:
Years ago, they used to give a bonus for carrying a full load. Not the case this year. Based on that, carrying the full load means you have overbuilt, and it could probably be lighter, thus scoring higher. Obviously, the very most efficient design will be one where every piece in the boom reaches its full potential and explodes all at once when a load of 14.9999999 KG is reached. This will be our goal this year!
Why not 15000g, if I may ask? I know this is probably a stupid question...
OK... ya got me!... I guess if every piece of the boom exploded at exactly 15.000000 KG, you'd win!
Well not exactly. If you explode at 15kg, you have optimized your design. Someone that is much lighter that holds 12kg could beat you if they have a higher efficiency ratio (mass held/mass of boomilever). I do like the tier of having to hold at least 3 kg. It was annoying competing against those designs that really only held the bucket and were super light.