Modifying R/C Servo''s for 180° rotation?
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Done it! Great, thanks for the info. Did something like this many
years ago but just forgot. With two 2.7k R's the swing is 135-140° I
tried other higher values at each end but with only a further few °
of movement. Once you reach 10k's, then it gets confused and starts
to "hunt"!
I don't have a Drum on this servo, being it's a standard twin ball-
raced, metal gears job. I've entended the arm to 6", so it's really
a "Sail Arm Servo".
Many thanks for your help.
Steve/G4MJW
--- In basicstamps@yahoogroups.com, "Mike DeMetz" <miked@e...> wrote:
>
> They used to do it by adding 2.7K resistors in series with the
outside
> feedback pot leads.
> >
> > Most R/C servo's have a mechanical swing of about 180° but an
R/C TX
> > produces a PWM O/P of 1mS to 2mS which corresponds to a movement
of
> > only 90°. Anyone know of any easy way to modify a servo to give
a 180°
> > movement for the same I/P range of 1 to 2mS?
years ago but just forgot. With two 2.7k R's the swing is 135-140° I
tried other higher values at each end but with only a further few °
of movement. Once you reach 10k's, then it gets confused and starts
to "hunt"!
I don't have a Drum on this servo, being it's a standard twin ball-
raced, metal gears job. I've entended the arm to 6", so it's really
a "Sail Arm Servo".
Many thanks for your help.
Steve/G4MJW
--- In basicstamps@yahoogroups.com, "Mike DeMetz" <miked@e...> wrote:
>
> They used to do it by adding 2.7K resistors in series with the
outside
> feedback pot leads.
> >
> > Most R/C servo's have a mechanical swing of about 180° but an
R/C TX
> > produces a PWM O/P of 1mS to 2mS which corresponds to a movement
of
> > only 90°. Anyone know of any easy way to modify a servo to give
a 180°
> > movement for the same I/P range of 1 to 2mS?