Author Topic: Mythbusters: RA2 Edition  (Read 29486 times)

Offline helloface

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Re: Mythbusters: RA2 Edition
« Reply #100 on: June 27, 2013, 01:05:13 AM »
 I thought a right angle was flat in the case of 3d objects.
Oh I'll be doing some banging.......

Offline Sage

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Re: Mythbusters: RA2 Edition
« Reply #101 on: June 27, 2013, 01:12:41 AM »
I thought a right angle was flat in the case of 3d objects.

let me restate:

its always better to use a diagonal side to connect to points instead of a right angle to connect 2 points because RA2 calculates weight by surface area.
You got my vote for RA2 Wizard. Always and forever.

Offline 123savethewhales

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Re: Mythbusters: RA2 Edition
« Reply #102 on: June 27, 2013, 01:52:46 AM »
What?  You mean people actually believed in that kinna nonsense?  I been sinking in my chassis to save weight for ages.

Rather or not sinking in can save weight will depend on the height of the chassis relative to the distance between the 2 points.  The lower the chassis and the further the 2 points are, the more likely you are to save weight.  I sink my chassis all the time to save KG.

If you want to be really anal about that you can calculate the first derivative of the surface area equation between 2 points, and find the instance where it is == 0.  You can probably write an excel spreadsheet to do just that.

Offline Psydia

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Re: Mythbusters: RA2 Edition
« Reply #103 on: June 27, 2013, 02:53:56 AM »
MYTH: a chassis with more corners is heavier than a chassis with less corners when they have the same surface area.
I cannot test it right now because i'm travelling to another city i'm posting from my phone.

Offline Sage

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Re: Mythbusters: RA2 Edition
« Reply #104 on: June 27, 2013, 04:09:56 AM »
What?  You mean people actually believed in that kinna nonsense?  I been sinking in my chassis to save weight for ages.

Rather or not sinking in can save weight will depend on the height of the chassis relative to the distance between the 2 points.  The lower the chassis and the further the 2 points are, the more likely you are to save weight.  I sink my chassis all the time to save KG.

If you want to be really anal about that you can calculate the first derivative of the surface area equation between 2 points, and find the instance where it is == 0.  You can probably write an excel spreadsheet to do just that.

what do you mean sinking? i'm unfamiliar with the term
You got my vote for RA2 Wizard. Always and forever.

Offline 123savethewhales

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Re: Mythbusters: RA2 Edition
« Reply #105 on: June 27, 2013, 04:13:38 AM »


This

I never knew anyone would think a triangle (a strait line through all 3 points) could save me weight.
« Last Edit: June 27, 2013, 05:05:37 AM by 123savethewhales »

Offline Squirrel_Monkey

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Re: Mythbusters: RA2 Edition
« Reply #106 on: June 27, 2013, 04:46:40 AM »
Didn't even know this was a myth.
Without calculation, if you are reducing the surface area of the top and bottom plates, it's usually more significant than the area increased by the slightly longer side panels.
I tend to just guess, hardly worth being to crazy about it until you need to shave off some extra 0.1kg somewhere.
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Offline 123savethewhales

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Re: Mythbusters: RA2 Edition
« Reply #107 on: June 27, 2013, 05:12:38 AM »
I think it's a stock thing, since the bots are so tall and they always try to trim those little corners.

Still, the only relevant application I see are for IRL.  I think for both stock and DSL the focus should be on reducing effective hitbox, even if said chassis end up a few kg more.

Offline Sage

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Re: Mythbusters: RA2 Edition
« Reply #108 on: June 27, 2013, 09:43:05 AM »
I think it's a stock thing, since the bots are so tall and they always try to trim those little corners.

Still, the only relevant application I see are for IRL.  I think for both stock and DSL the focus should be on reducing effective hitbox, even if said chassis end up a few kg more.

Really? I think a few kg here and there is much more important in stock than anywhere else.
You got my vote for RA2 Wizard. Always and forever.

Offline Absolarix

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Re: Mythbusters: RA2 Edition
« Reply #109 on: February 05, 2014, 06:42:25 PM »
Wow, very useful information there. Thanks guys!
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