Subject:
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Re: Monkey clarifications
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Thu, 16 Aug 2001 22:40:11 GMT
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Viewed:
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949 times
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HI Jeff,
Welcome to the group. As of right now RTLToronto, is a not for profit
group, mostly adult user of lego, who really only care about robots.
(Cause after your train goes around the loop once, what more is there to
do??)
;)
you bring up a few question that I might or might not have addressed.
> Regarding the Monkey problem for rtlToronto9 - I had a few questions
> about the setup and rules:
>
> 1) Can anyone think why 5/8" dowel wouldn't serve as a substitutue for
> 1/2" copper pipe? Because dowels are a lot cheaper, plenty strong, and
> are easier to cut if you forgot your pipe cutter at work.
ummmm, I think when I did my walk through Home Depot, i priced both
copper and dowel. I never posted the price of the dowel but this
message points out that copper pipe is really cheap.
http://news.lugnet.com/org/ca/rtltoronto/?n=1260
@ $5.75 for a 12 foot section...... Where do you buy your dowel??? of
you want to make a test game board for your own use, I'm sure wood is
OK.
> 2) So how many pipes/dowels are there? It's not clear to me whether
> there are 15 or 16 - it depends on whether the first one is 3" or 6"
> along the 2x4 - either option seems reasonable. I'd go with 3" and 16
> dowels, myself - longer race, and if you buy 4' or 8' dowels, you're
> likely to have enough for an even number of rungs, anyway.
It's not clear mainly because we never really built a full version of
the ladder. I can understand the need to know so you can program your
monkey to STOP after 15 rungs...... Until the board is built leave the
rung counting a variable.
:)
> 3) Rule 7 on the web page states, "Robots cannot touch the floor, nor be
> higher than the top edge of the 2x4." So if one of my robot's arms
> swings higher than the top edge of the 2x4 for any reason, I'm
> disqualified? Or are you saying the robot can't start up there? 'Cuz I
> could see that being an issue, especially if it's a close game. Perhaps
> we want to lay a sheet of plexiglass as a "ceiling" over top if that's
> the issue?
this "rule" came about because I want to have a "swinging" monkey
game. Calum suggested that the then current rules allowed for a robot
that could be a tracked vehicle that spanned the rungs, and "rode"
along the top. to try and stop this I figured that if Calum could make
a fully balanced, tracked robot, that never went higher then the top of
the 2x4 then I'll let him have it. keeping in mind that the distance
from the top of a rung to the top of a 2x4 is so small that I'm willing
to bet that he cant do it. even if the robot was a C shape the weight
of the robot would make it VERY hard to balance the tracks on the top of
the rungs.
I have no problem, with arms or "whatever" passing the height of the 2x4
so long as it is not a car that "rides on top"
> 4) In starting conditions, it states that robots can start on one rung,
> or two - So I take it the robot can start either hanging from the first
> two rungs, or just from the second one, correct? The advantage to
> hanging from two being that you can start with a swing by releasing the
> back one?
the official starting place for ALL monkeys will be considered as rung #
2. so if both "arms" hang on one rung, then place your monkey on rung
2. If your monkey needs a constant 2 rungs to stay up, then that
option is there. this will allow robots to spread their weight. it
was not my intention to offer an advantage of momentum. but if it is
their then all people know about it and can use it.
> We also might want to state the dowel/pipe diameter on the web page, in
> case people are to lazy to search lugnet.org.ca.rtlToronto for "copper"
> :)
the outside diameter of copper pipe (the rung of champions) is 5/8"
JUST to make life more confusing. the rungs will be made of 1/2" copper
pipe. this is the standard plumbing pipe for domestic water. It has
an INSIDE diameter of 1/2" BUT the OUTSIDE diameter is 5/8"
SO of for some strange reason you build a robot and it can only grasp
1/2" the you are so out of luck..
:(
> ...
>
> Not that I'm thinking of bringing a robot of course, just wondering
> idly.
Why would you NOT bring a robot. you could call the monkey "schmoopy"
and if you really wanted to you could define its atomic weight. as seen
here:
http://extranet.telepres.com/staff/jeffe/elements/106.html
:0
:)
Chris
Visit my newly revamped walker page @
http://www.members.home.net/cmagno/technics/index.htm
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Message is in Reply To:
 | | Monkey clarifications
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| Hi all, Regarding the Monkey problem for rtlToronto9 - I had a few questions about the setup and rules: 1) Can anyone think why 5/8" dowel wouldn't serve as a substitutue for 1/2" copper pipe? Because dowels are a lot cheaper, plenty strong, and are (...) (23 years ago, 16-Aug-01, to lugnet.org.ca.rtltoronto)
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