Subject:
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Re: (tentative) new Toronto lego robot contest
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Tue, 16 Oct 2001 01:55:13 GMT
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Viewed:
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596 times
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"Calum Tsang" <tsangc@mie.utoronto.ca> wrote in message
news:GL9wCv.Fot@lugnet.com...
> Then why restrict possible design alternatives? If you're aiming to
> "challenge our minds" then you shouldn't restrict people to one design
> possibility-meaning, why restrict people to build a cartesian type robot • or
> an arm robot only? You've already discounted Iain's design of picking all
> of the pieces up first if you state the spirit says a robot that has "the
> smarts to 'see' a problem" since Iain's wouldn't see the problem at all if
> it grabs ALL the pieces ahead of time.
No no, Chris said it would be okay for me to collect them into a 2by8 nest
off the main grid.
> A tipper setup is just the same as collecting all the pieces up regardless
> of position into a staging area on the side and redeploying them. Why • limit
> people to the solution YOU have come up with? Maybe YOU should challenge
> your mind and see that there are other solutions available!
I can't think of too many ways besides some sort of gantry to solve this
problem. I'd love to see totally out-of-the-box thinking.
> At rtl9, I heard comments that Trevyn's end-cap rotating robot was a novel
> solution unlike the five or six arm hanging like robots out there. As was
> Rob's pinwheel design. Both were different, novel and solved the problem • in
> a different way. I wouldn't discount those options for rtl10. Not • everyone
> is going to build a cartesian Iain emulator, as cool as that is.
I always love competitions where you see such a wide range of solutions. It
was so great at 9 to see so many variants of robots. It was great to do a
competition that did not rely on AB steering. I have some reservations about
the next competition generating much differentiation between solutions. But
I am really excited to see how everyone will make a fast robot. There are
just so many ways to do that mechanically.
For me, I think the solution will be to remove as much mass from any moving
members as possible. I am going to try to isolate all drives from the axes
themselves to keep them operating so quickly. I cannot (to the best of my
knowledge) figure out how to do proper logic with regards to moving certain
blocks into certain positions, so I am going to take the easy road by having
the gantry load a nest off-board with the eight blocks. Then, remove the
blocks from the nest and re-place them on the board.
I doubt I will have the fastest solution time, but I would like to try to at
least have a nice, fast, lightweight gantry. So that is my game plan for
now.
Dave, if you build a delta robot that is the size of a fridge, I will cry.
Now, if only LEGO made a linear induction motor. :)
Iain
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Message has 2 Replies:
 | | Re: (tentative) new Toronto lego robot contest
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| (...) Correct. But what I'm arguing is Chris' statement of: (...) Notice he says "with the smarts to "see" a problem and change the pattern of blocks to the one specified". Your design wouldn't even see it, if you grab them all first and put them (...) (23 years ago, 16-Oct-01, to lugnet.org.ca.rtltoronto)
| | | Re: (tentative) new Toronto lego robot contest
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| (...) Oh I have some ideas ;) In order for one of my ideas to work, I need the top of the blocks to be tiled. You let me worry about how the 3x3 block is sitting in the 4x4 square. I am also so impressed by the delta v 'bot pics that Iain had a link (...) (23 years ago, 16-Oct-01, to lugnet.org.ca.rtltoronto)
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Message is in Reply To:
| | Re: (tentative) new Toronto lego robot contest
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| (...) Why is that a cheat? I disagree. It's harder to build a machine that tips the board and collects the pieces, then drops them into position. In fact, you'd have to build two devices: A tipper and collator/assembler at the bottom edge, as well (...) (23 years ago, 16-Oct-01, to lugnet.org.ca.rtltoronto)
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