Subject:
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Re: [rtlToronto] rtlToronto21 Tentative Ruleset Published
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Wed, 29 Mar 2006 16:08:50 GMT
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Viewed:
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731 times
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Brian Davis wrote:
> In lugnet.org.ca.rtltoronto, Calum Tsang wrote:
>
>
> > Can someone figure out how much an RCX weighs
> > with two motors?
>
>
> All masses in pounds (stupid scale):
> RCX with batteries = 0.56 - 0.60 (depending on batteries)
> Two light gearmotors = 0.13
> Two "old" gearmotors = 0.185
> So an RCX with two motors is between 0.69 and 0.785 pounds. Not a lot of room in
> there. BTW,
> AA-based battery box = 0.465
> "little" 9V-based box = 0.14
> Weight brick (love 'em) = 0.12
>
> I do have to say that the lighter weight is interesting. I agree with Steve that
> a 500g minisumo has little room for more than an RCX and two motors. But the
> last minisumo I was in, there were four all-LEGO robots, two RCX based and two
> battery box based... and they often beat the "sheet metal" variety.
Based on these results, and adding a third old gear motor,
I get 0.8375 LB
So, that leaves 0.1625 LB (1)(2) for sensors and parts. (3)
the more I see it, the more I LIKE the 1 lb rule!
beams and parts are not all that heavy, so 2 oz should be lots to bang
off a bot.(4)
Chris
1. thats about 2.6 Oz. OR to put it another way slightly more than an
average large-grade-A uncooked white EGG at room temperature.
2. 0.0737087601 kilograms
3. So, you could have 1 RCX, 3 OLD gear motors, AND enough weight left
for parts and sensors.
4. UNLESS your name is DAVE, and build MONSTER bots
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