## Re: 4 motor turning

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• ... walker ... U cant go LEFT/RIGHT while goin forward.. that aint turning :) do you mean crabwalk???
Message 1 of 5 , Oct 5, 2005
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--- In beam@yahoogroups.com, "adam" <acharris@u...> wrote:
> could i get a good detailed description on what makes a 4 motor
walker
> turn left or right while going forward? i've been plaing with mine,
> chnging things, but he keeps falling over, or even jsut totally
> ignoring the mismatched resistances of the 4 bicores.
>
> thanks,

U cant go LEFT/RIGHT while goin forward.. that aint turning :) do you
mean crabwalk???
• i mean walking with a tendency to go right or left (if you wanna be that way about it, lol) like when you reverse and turn, but forward. it s possible, i ve
Message 2 of 5 , Oct 5, 2005
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i mean walking with a tendency to go right or left (if you wanna be
that way about it, lol) like when you reverse and turn, but forward.
it's possible, i've almost gotten it to work. i have successfully done
it with a 2 motor, and i could easily do it with a 3 motor, but
playing with the CC resistor on the 4 motor has gotten me no where but
flipped upside down. i tried to use the same methods for the 4 motor
as i did for the 2 motor circuit i wrote about for circuit cellar (if
my professor ever turns it in, it may get published...) but that
method doesn't work that well with a 4 motor.

--- In beam@yahoogroups.com, "beamrx5" <beamrx5@y...> wrote:
> --- In beam@yahoogroups.com, "adam" <acharris@u...> wrote:
> > could i get a good detailed description on what makes a 4 motor
> walker
> > turn left or right while going forward? i've been plaing with mine,
> > chnging things, but he keeps falling over, or even jsut totally
> > ignoring the mismatched resistances of the 4 bicores.
> >
> > thanks,
>
> U cant go LEFT/RIGHT while goin forward.. that aint turning :) do you
> mean crabwalk???
• Hi! Well, I m assuming you re dealing with the Scoutwalker 2 right? Yeah, if you know my bot Tank , well...that would be the answer (I hope). You can take a
Message 3 of 5 , Oct 5, 2005
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Hi! Well, I'm assuming you're dealing with the Scoutwalker 2 right?
Yeah, if you know my bot "Tank", well...that would be the answer (I
hope). You can take a look at it at:

http://haroldsbeambugs.solarbotics.net/Tank.html

and the schematic I've used is from Solarbotics' Scoutwalker 2
layout drawing at:

http://haroldsbeambugs.solarbotics.net/TankSchematicDiagram.jpg

I just hope this would help you out. BTW, I've also experienced the
flipping over or like jumping 'til it falls on its back. It like a
dying cockroach or something, hehe. Well, this would be all for now.
Hoping to hear from your side soon. Goodluck and play with the
resistor values (only!). ;)

....Harold.

--- In beam@yahoogroups.com, "adam" <acharris@u...> wrote:
> i mean walking with a tendency to go right or left (if you wanna be
> that way about it, lol) like when you reverse and turn, but
forward.
> it's possible, i've almost gotten it to work. i have successfully
done
> it with a 2 motor, and i could easily do it with a 3 motor, but
> playing with the CC resistor on the 4 motor has gotten me no where
but
> flipped upside down. i tried to use the same methods for the 4
motor
> as i did for the 2 motor circuit i wrote about for circuit cellar
(if
> my professor ever turns it in, it may get published...) but that
> method doesn't work that well with a 4 motor.
>
>
> --- In beam@yahoogroups.com, "beamrx5" <beamrx5@y...> wrote:
> > --- In beam@yahoogroups.com, "adam" <acharris@u...> wrote:
> > > could i get a good detailed description on what makes a 4
motor
> > walker
> > > turn left or right while going forward? i've been plaing with
mine,
> > > chnging things, but he keeps falling over, or even jsut totally
> > > ignoring the mismatched resistances of the 4 bicores.
> > >
> > > thanks,
> >
> > U cant go LEFT/RIGHT while goin forward.. that aint turning :)
do you
> > mean crabwalk???
• And also, you re right... it can turn while still moving forward. Bu thay merans that only the other side walks forward while the other side reverses
Message 4 of 5 , Oct 5, 2005
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And also, you're right... it can turn while still moving forward. Bu
thay merans that only the other side walks forward while the other
side reverses (backward). In this way, the bot will surely turn left
or right, just like in a wheeled robot. Then you should refer to
scoutwalker 2 from Solarbotics site or from my site (the link I've
given you earlier). Goodluck there and keep it up! ;)

...Harold.

P.S. If you're using a hobby servo, you should use centering springs
or leg stops for each leg. I've used microservos for "Tank".

--- In beam@yahoogroups.com, "adam" <acharris@u...> wrote:
> i mean walking with a tendency to go right or left (if you wanna be
> that way about it, lol) like when you reverse and turn, but
forward.
> it's possible, i've almost gotten it to work. i have successfully
done
> it with a 2 motor, and i could easily do it with a 3 motor, but
> playing with the CC resistor on the 4 motor has gotten me no where
but
> flipped upside down. i tried to use the same methods for the 4
motor
> as i did for the 2 motor circuit i wrote about for circuit cellar
(if
> my professor ever turns it in, it may get published...) but that
> method doesn't work that well with a 4 motor.
>
>
> --- In beam@yahoogroups.com, "beamrx5" <beamrx5@y...> wrote:
> > --- In beam@yahoogroups.com, "adam" <acharris@u...> wrote:
> > > could i get a good detailed description on what makes a 4
motor
> > walker
> > > turn left or right while going forward? i've been plaing with
mine,
> > > chnging things, but he keeps falling over, or even jsut totally
> > > ignoring the mismatched resistances of the 4 bicores.
> > >
> > > thanks,