Article View: comp.robotics
Article #180Re: 6 leged beast
From: David Williams
Date: Mon, 27 Jul 1992 17:41
Date: Mon, 27 Jul 1992 17:41
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2648 bytes
In <gate.qL35NB1w165w@toz.buffalo.ny.us> cyberman@toz.buffalo.ny.us (Cyberman) writes:
>I have been reading this group for 5 months now and I acutally
>have a question.
>I would like to make a 6 legged robot. I need to have the
>ability to ROTATE both clock wise and counter clockwise, go
>forward and reverse directions. Any suggestions on the
>mechanisms and method of movement. The design is to be very
>small [for a robot at least] ie 6x6 inches, another restriction
>is simplicity. The "brain" is extremly small and cannot really
>perform sophisticated movements. [unless thier is no
>alternative]
> Stephen Cyberman@Toz.Buffalo.NY.US
> Scripted at Sat 07-18-1992 22:33:29
>... "Could you continue your petty bickering? I find it most intriguing."
>--- Blue Wave/QWK v2.10
>
Simplicity? On a 6-legged robot? I don't think it's possible. A
really crude 6-legger would need 6 motors to move the legs around one
axis (of course, I'm ignoring the two-motor variety, but that sort
of "walker" robot is pratically the same as a treaded robot) To make
a really neat robot, you're going to want to have the legs move with
two degrees of freedom, implying 12 motors. I suppose you could use
RC-type servo motors, but the thing is not going to be really strong
(unless you want to pay big bucks for the big servos).
Somehow I think I'm going to get flamed... "what? I've got eight
3" by 4" six-leggers munching on my ankles right now! All are powered
by watch batteries, and use a 4-bit processor! You're an idiot"
Seriously, a six-legger that had been stripped down to reduce it's
complexity seems like it would just not be that much fun to fiddle with.
On the other hand, I couldn't come up with any mechanism for a six
legger with each leg having two degrees of freedom that wouldn't cost
an arm and a ... leg? (uuupppphhh! pun not intended)
--
Dave Williams My
dwilliam@jabba.ess.harris.com opinions
"Huh? What? Could you repeat the question?" only.
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Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!mlb.semi.harris.com!trantor.harris-atd.com!jabba.ess.harris.com!dwilliam From: dwilliam@jabba.ess.harris.com (David Williams) Newsgroups: comp.robotics Subject: Re: 6 leged beast Message-ID: <1992Jul27.174110.5064@trantor.harris-atd.com> Date: 27 Jul 92 17:41:10 GMT References: <gate.qL35NB1w165w@toz.buffalo.ny.us> Sender: news@trantor.harris-atd.com (News stuff) Organization: Harris Information Systems Division, Melbourne, FL Lines: 45