Subject:
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RE: hexipod walker
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 8 Jan 1999 11:58:35 GMT
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Original-From:
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John Hatton <johnha@icsplc.co.ukNOSPAM>
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Viewed:
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892 times
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The only problem with using individual servo control is speed, the time
it takes to move 12 servos by individual commands is rather long. This
has the effect of slowing the walker down considerably. A dedicated
controller such as the MSCC11 that I mentioned previously moves all the
servos at the same time thus increasing the movement speed (admittedly
this will probably not be very quick no matter what you use, I think I
worked it out to be approximately 2 mile per hour max but my maths could
be wrong).
John Hatton
mailto:johnhatton@email.com
> ----------
> From: Wijngaarde, Ronald[SMTP:r.wijngaarde@intercai.nl]
> Sent: 08 January 1999 11:35
> To: handyboard@media.mit.edu; r.farnhill@bssl.co.uk
> Subject: RE: hexipod walker
>
> I believe the best thing to do is use separte controlers (e.g. PICs) to
> control the specific motions of the servo's. This will allow you to have
> more control over the HB. There are several places on the web (e.g.
> http://www.brouhaha.com/~eric/pic/ where you can find info on PIC's
> including having them control servo's. I think the timing constraints on
> 12 servo's will heavily tax the HB resources.
>
> Ronald Wijngaarde
>
> > ----------
> > From: r.farnhill@bssl.co.uk[SMTP:r.farnhill@bssl.co.uk]
> > Sent: vrijdag 8 januari 1999 11:30
> > To: handyboard@media.mit.edu
> > Subject: hexipod walker
> >
> > Hi all
> >
> > Iam thinking about making a six legged walking robot using servos and
> > wondered if anybody has already built one.
> > I want to use two servos per leg one for lifting and another for the
> > sweeping action so giving 12 in total. One thing i want to know is how
> > do
> > you control twelve servos? i have seen some serial servo controllers
> > that
> > control upto 256, is it possible to control them with just the
> > handyboard.
> > also does the HB have enough proccessing power to control all these
> > servos
> > and still have enough spare for obstical avoidance etc.
> >
> >
> >
> > Any thoughts, tips etc.
> >
> > Thanks Russ....
>
>
>
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