Subject:
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Re: [rtlToronto] rtlToronto16 Preliminary Rules Released
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Wed, 25 Feb 2004 14:23:55 GMT
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Viewed:
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866 times
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Rob Antonishen wrote:
> A couple of suggestion on the proposed rules:
>
> {"The rope will hang roughly 12" from the floor."}
>
> I think this needs to be a more exact measurement...because of the reaching-up
> aspect, the differerance between 11" and 13" could be the difference between
> sucess or failure.
HUH!!!????
how much more exact do you need than 12" ????
the only thing I can add, is that dead hung rope will have a tendency to curl. I
think we can cover our buts and let people know that fully stretched the rope will
be 12" from the ground, BUT it just might curl higher. you will have to deal with
it.
>
> {"At 132" (11 feet) there will be a lower mark, using 1/2" black electrical
> tape. 12" further along (12 feet) there will be an upper mark, again using black
> tape."} ... {"The first robot with makes it above it's lower mark and is also
> under it's upper mark will win that match."}¼
>
> As Rob commented, the 1 foot spacing between the two tape strips is somewhat
> limiting for several reasons.
>
> * Assuming a straight rope feed, the robot will have to retract itself to under
> 1' after extrending itself to over 1' (or rotate itself perpendicular to the
> rope) to be within the lines.
answered in another post
> * Assuming a non linear rope path (rope wound around a pully, rope serpentined
> through pullys, spooling robot etc.) again, the bottom tape stripe is (as
> pointed out) meaningless.
pointless, the lower mark is more a way to force the entire robot up the rope. the
lower mark is NOT as important as the upper mark.
> * If a robot crosses the top strip is it disqualified?
NO.
> I have proto-typed a few things and have some additional comments...
>
> This sash cord is [not] easy to grip...It is very smooth so friction drives have
> trouble and very tightly woven so lego based spurs don't seem to grab well.
welcome to rtlToronto.
>
> Any idea on the end of the rope...taped or just cut? The rope I am playing with
> has demonstrated significant fraying and widening at the cut end after being
> spindled, folded and mutilated. This could significantly alter the competition
> as the ropes are used through the day...
this is a slight concern. I am in discussion with my rope guru friends, and will be
looking into ways of whipping the end with something so that it will prevent it
from fraying, AND will also not increase the size, or flexibility of the end.
maybe a dip in wax, OR using thread to whip the end.
Bruce, your a rope guy, any thoughts?
>
> The rules do not state the robot has to be able to get back down, it just has to
> get up. Is this everyone's interpretation?
yep, just UP.
Chris
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