"Paul B. Webster VK2BZC" wrote:
>
> Philippe Jadin wrote:
>
> > Well, I put together some informations about servos (controlled by lpt
> > port on a pc running win 95, but still interesting if you know nothin
> > about servos) :
>
> > goto http://users.swing.be/philippe.jadin/servoen.htm
>
>   OK, firstly your webpage omits the ground connection to the printer
> port connector.  I think you should have shown that clearly as some
> people will otherwise complain of very peculiar behaviour.

You also talk on your web page of pulse lengths of 1.5 to 2 millisecs.
AFAIK 1.5 millisecs is servo centre with 1 millisecs minimum and 2
millisecs maximum position of the servo. Also don't use 1 millisec and 2
millisecs as absolutes, as it can damage some servo's. Rather keep it
between 1.2 and 1.8 millisecs to be safe.

Quentin