Subject:
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RE: PipeXplorer
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 23 Dec 1998 21:40:11 GMT
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Original-From:
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David Colomer <DAVID.COLOMER@SEMAGROUP.CLantispam>
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Viewed:
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1255 times
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It was easy. The organic appendix of my bot (say me) oppened the fridge,
prepeared the juice,
and pressed the green RUN key in the brick. It is not too SciFi stuff, but
it worked with my wife.
The bot was buildt with the 4 big wheels that come with the RIS, two motors,
gears reducing the speed and increasing the power and a simple program
(using the Lego Interface) that moved the bot meanwhile this is beeping. It
was my first "bot".
The weight of the juice was a problem that I solved using an smaller glass
(or glassware is not too heavy, that was a help).
I only recomend this kind of things if you can tick in the following cases:
1.- Your wife is really ungry because the amount of money spent in Lego
Kits.
2.- You don't need to sleep more than 5/6 hours a day.
3.- Your wife is able to forget everything if you serve her breakfast at
bed.
Try if need.
Merry Chritsmas to all.
David
-----Mensaje original-----
De: Lageson, Tom [mailto:tml@TENNANTCO.com]
Enviado el: miércoles 23 de diciembre de 1998 12:32
Para: 'David Colomer'
Asunto: RE: PipeXplorer
David,
How did you get it to do the orange juice gig? Where did your robot start
(waking up at 5:50 a.m., opening the refrigerator door, grabbing the orange
juice off a shelf)? Also, was it a can or a drinking cup? How did you deal
with the weight of the orange juice and also, how did you keep it from
spilling?
Inquiring minds want to know.
Tom Lageson
tml@tennantco.com
> ----------
> From: David Colomer[SMTP:david.colomer@semagroup.cl]
> Sent: Wednesday, December 23, 1998 11:06 AM
> To: 'Laurentino Martins'
> Cc: 'Lego-Robotics'; 'Tim McSweeney'; 'Heinz Frei'
> Subject: RE: PipeXplorer
>
> I think it is a really good beginning. Just only consider a few facts.
>
> Let's suppose the bot is big enough to "fit" in the chimney (I liked the
> idea and it is Christmas). The bot is going to use one axis to move along
> the chimney... and you need another to control the direction along the
> axis.
> This means to use at least two motors (I think that three will be the
> number: 2 climbing and 1 controling direction).
>
> Why don't try to calculate the weight (aprox.) of the bot and check the
> possibility before your CiberMaster crash? It is Christmas time and Santa
> will be mad if you break your "adult's toy"
>
> David
>
> PS-> Heinz, I have no children yet, but my wife considered that "play with
> Legos is kids stuff" until the first bot crossed our bedroom at 6:00 am
> carring an orange juice on. Try it!
>
> -----Mensaje original-----
> De: Laurentino Martins [mailto:lmartins@marktest.pt]
> Enviado el: miércoles 23 de diciembre de 1998 10:20
> Para: David Colomer
> Cc: Lego-Robotics; Tim McSweeney
> Asunto: RE: PipeXplorer
>
>
>
> Well, the project didn't even started yet, but I'm thinking on it
> seriously.
> I see some problems in design because I'm a LEGO purist and I'm not sure
> if
> I can make it small enough to be of any use. Also, I don't know yet if I
> can
> devise a way to make it turn.
> Anyway, I'm probably going start by testing the design in my room using
> two
> closets or shelves next to each other and see it adapts to the space
> between
> them. Then I'm going to make sure it can in fact run and climb by pressing
> against the walls of the closets. I don't know how feasible this might be,
> but I probably must demultiply the motors or it will not have enough
> strength for climbing.
> For a real life test I was thinking in making it climb my chimney... After
> all it's Christmas, isn't it? *<||:-)
>
> Anybody ever seen a similar project?
>
>
> Laurentino Martins
>
> [mailto:lau@mail.telepac.pt]
> [http://www.terravista.pt/Enseada/2808/]
>
> --//--
>
> At 13:53 23-12-1998 Wednesday , you wrote:
> > It sounds fine!
> >
> > Two simple questions:
> >
> > What the pipes are made of? Some materials can be a problem respect to • the
> > radio link.
> >
> > What kind of pipes are you thinking about? I mean, they must have a "big"
> > diameter to allow the bot to move inside.
> >
> > David
> >
> > -----Mensaje original-----
> > De: Laurentino Martins [mailto:lau@mail.telepac.pt]
> > Enviado el: martes 22 de diciembre de 1998 20:41
> > Para: Lego-Robotics
> > Asunto: PipeXplorer
> >
> >
> >
> > I'm thinking in building a bot for exploring pipes and conduits with my
> > CyberMaster.
> >
> > Here's the idea:
> > It must be small enough to fit inside a pipe and also to be able to make
> > turns without major problems (although turns are not my first priority).
> > It will "attach" itself to the walls of the pipe by pressing against the
> > sides of it with wheels/tracks in at least 2 opposite directions, and
> > pressing with enough strength to be able to climb a vertical pipe if
> > necessary (important!).
> > It also must be able to stretch itself to adapt to larger pipes at • runtime.
> > I'm confident the CyberMaster radio link might be able to pick the tower
> > even on long pipes if I place it near the opening, so I might be able to
> > command the unit it by hand using a joystick or keyboard.
> > Later maybe I may be able to place a light and a camera on it. Of course • it
> > would have to drag a cable behind it, but strength to do this should not • be
> > a major problem.
> > Right now I'm more interested in creating the mechanics for this...
> >
> > Comments?
> >
> >
> > Laurentino Martins *<||:-)
> >
> > [mailto:lau@mail.telepac.pt]
> > [http://www.terravista.pt/Enseada/2808/]
>
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