gametechmods
Robot Arena => Discussion => Topic started by: G.K. on January 23, 2010, 05:21:18 AM
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I was reading VeXeD's wiki page and it mentioned the Psycolone Popup Challenge. Can anybody enlighten me as to what it was?
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2 blacks, 2 HPZs with rubbers, DDT wedge, 8 razors on 2 DDTs, DSA on a MW, like this:
(https://gametechmods.com/uploads/images/99354quasar2.PNG)
And countless others as well. :D
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So like Big Flip's Revenge?
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BFR has a snapper wedge and 6 razors on 3 Snapper2s. But the bot's body is almost a perfect fit for the PYS popup setup.
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The only reason it was invented was to force people to make the perfect chassis, which is a habit that everyone must learn.
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The irony being that it wastes weight trying to fit around everything perfectly.
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The irony being that it wastes weight trying to fit around everything perfectly.
How so?
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That the final setup is slightly underweight.
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That the final setup is slightly underweight.
You can always spend the weight on making a shallower chassis wedge.
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The irony being that it wastes weight trying to fit around everything perfectly.
How so?
Why is a bubble circular?
To have a smaller surface area.
You see, you can gain about 0.4 KG's easy by having the spot between the DDT and the rubber not bend like that.
with that gained weight, you can make a shallower chassis wedge.
RA2 is part stratagy, part awesome.
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The irony being that it wastes weight trying to fit around everything perfectly.
How so?
Why is a bubble circular?
To have a smaller surface area.
You see, you can gain about 0.4 KG's easy by having the spot between the DDT and the rubber not bend like that.
with that gained weight, you can make a shallower chassis wedge.
RA2 is part stratagy, part awesome.
You forget that there will be more surface area on top and bottom if you make it not bend like that. The gain will not be significant. A bubble also has less volume than a square of the same radius.
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The irony being that it wastes weight trying to fit around everything perfectly.
How so?
Why is a bubble circular?
To have a smaller surface area.
You see, you can gain about 0.4 KG's easy by having the spot between the DDT and the rubber not bend like that.
with that gained weight, you can make a shallower chassis wedge.
RA2 is part stratagy, part awesome.
You forget that there will be more surface area on top and bottom if you make it not bend like that. The gain will not be significant. A bubble also has less volume than a square of the same radius.
Yup, but a sphere's surface-to-volume ratio is lower.
Anyways, the gain will be or not be significant depending on the heigth of the chassis. Might even be a weight loss...
...This calls for an optimization math problem. Anyone for it ? I don't feel like doing math right now :confused:
Edit: :O quote pyramid
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The irony being that it wastes weight trying to fit around everything perfectly.
How so?
Why is a bubble circular?
To have a smaller surface area.
You see, you can gain about 0.4 KG's easy by having the spot between the DDT and the rubber not bend like that.
with that gained weight, you can make a shallower chassis wedge.
RA2 is part stratagy, part awesome.
You forget that there will be more surface area on top and bottom if you make it not bend like that. The gain will not be significant. A bubble also has less volume than a square of the same radius.
Yup, but a sphere's surface-to-volume ratio is lower.
Anyways, the gain will be or not be significant depending on the heigth of the chassis. Might even be a weight loss...
...This calls for an optimization math problem. Anyone for it ? I don't feel like doing math right now :confused:
Edit: :O quote pyramid
Surface area weight and vol- Hey! This Optimazation is going a little to far, don't ya think?
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The irony being that it wastes weight trying to fit around everything perfectly.
How so?
Why is a bubble circular?
To have a smaller surface area.
You see, you can gain about 0.4 KG's easy by having the spot between the DDT and the rubber not bend like that.
with that gained weight, you can make a shallower chassis wedge.
RA2 is part stratagy, part awesome.
You forget that there will be more surface area on top and bottom if you make it not bend like that. The gain will not be significant. A bubble also has less volume than a square of the same radius.
Yup, but a sphere's surface-to-volume ratio is lower.
Anyways, the gain will be or not be significant depending on the heigth of the chassis. Might even be a weight loss...
...This calls for an optimization math problem. Anyone for it ? I don't feel like doing math right now :confused:
Edit: :O quote pyramid
Surface area weight and vol- Hey! This Optimazation is going a little to far, don't ya think?
You brought it up...
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Fun > Optimization
:mrgreen:
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Yup, but a sphere's surface-to-volume ratio is lower.
Anyways, the gain will be or not be significant depending on the heigth of the chassis. Might even be a weight loss...
...This calls for an optimization math problem. Anyone for it ? I don't feel like doing math right now :confused:
Edit: :O quote pyramid
The math is too case specific to do, and way too arcane when dealing with complex chassis. Here I will simply compare square base rectangle with cylinder.
The sphere in theory is the most volume in the smallest surface area (impossible in RA2)
The cylinder has the most volume/surface area that is doable in RA2
Because parts cannot fit perfectly in round surfaces, you end up with wasted volumes when using cylinder
Square based rectangle has a lower volume/surface area than cylinder. However they (in theory) will not have wasted volume
The parameter of 1 cm^2 square = 4, the parameter of 1 cm^2 circle = 2(pi^(1/2)), or 3.5449. In short, the efficiency ratio of square to circle is 4:3.5449, or 113%.
Assuming heights are equal, when height = 0, there are 0 efficiency gain. The taller the chassis, the more the gain, caps out at 13% as height approach infinity. Actual percent gain is determine by both height and the area of the circle or square.
As long as excess volume of cylinder does not create more surface area then the inefficiency of the square based rectangle, then cylinder is more efficient, else square is more efficient.
I suggest forgetting all the math.
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Um, so filled up square and circular bases are best?
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I suggest forgetting all the math.
Perfect solution is perfect