[Robotgroup] Can anyone spare a BOE-Bot servo?

[Paul Atkinson]

Some of the CR servos, including the Parallax ones, have a pot that can be
adjusted to define the neutral/center zone. I believe the boe-bot has some
instruction on how to do this. Something along the lines of having the BS2
output a fixed, neutral pulse and then adjusting the servo pot so the servo
doesn't move.

Don't meant to over-state the point, but if the servos are for making the
Boe-bot roll along the floor, then you may be disappointed with a standard
servo, because the Boe-bot will only move about 1/4 of a wheel rotation
forward or back with a standard servo. The continuous servo allows it to
roll forward continuously while receiving a servo pulse > neutral. A neutral
pulse should stop the motor. A pulse < neutral should have the motor
reversing continuously.

Paul

On Jan 23, 2008 12:07 AM, LHudson <lhudson73 at yahoo.com> wrote:

> I figured that out today as I was programming one CR servo and one
> standard.  Actually the standard is really what I needed; the CR has no idea
> where the "Center" is.  It was dumb luck that I happened to missplace one of
> the BOE-Bot servos, so I'll be stopping by Hobby Town again tomorrow.
>
>
> Paul Atkinson <pmatkinson at gmail.com> wrote:
>  Scott,
>
> I believe that the wheel servos on the BoeBot are modified for continuous
> rotation. SO, if you are replacing one of those with a Hobby Store servo,
> there will be a problem. A standard servo only swings ~180 degrees. Most,
> not all, can be modified to do continuous rotation.
>
> If the servo is used to pan a Ping sensor, then a standard servo is what
> you
> need.
>
> Paul
>
> On Jan 22, 2008 8:43 PM, LHudson wrote:
>
> > Well I looked up servos online and it seems that any hobby store that
> > sells Radio Controlled car kits also sells servos -- learn something new
> > every day with this robot endeavor. I picked one up at Hobby Town on
> Lamar
> > and Ben White. Nice to know that I won't have to mail-order every single
> > thing from now on.
> >
> > :-)
> >
> > LHudson wrote:
> > Okay so I seemed to have misplaced one of mine. Although I do have a two
> > year old boy, so it might not be entirely my fault. Anyway I was hoping
> to
> > introduce my project on Thursday so if anyone has one that they can
> spare, I
> > would owe you big time!
> >
> > Scott
> >
> >
> > L. Scott Hudson
> >
> > If I were certain that the World would end tomorrow, I would plant a
> > tree...
> >
> >
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> >
> > L. Scott Hudson
> >
> > If I were certain that the World would end tomorrow, I would plant a
> > tree...
> >
> >
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> L. Scott Hudson
>
>  If I were certain that the World would end tomorrow, I would plant a
> tree...
>
>
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