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If you are having trouble with your encoders giving the Autostar false pulses - one thing you can do is this; and proceed with CAUTION.
The encoders wheels are very fragile. You can and most likely will bend them, you can over tighten the shaft, bending it as well.
These are not field replaceable. In other words, Meade isn't going to send you a new one if you dork it up. They will ask you what you were doing - then void your warranty on the motor.
This is a radical fix, and you should not do this unless you are having GOTO and or tracking problems and feel comfortable knowing you can disable your motor entirely.
You will have to completely dismantle the motor electronics to do this.
First try setting up your Autostar correctly, and testing your motors in a different way.
Remove the encoder(s) from the motor shaft.
Set them up on a raised surface (where the top and bottom aren't touching anything. We use a special made stand for them)
Paint both sides, flat black. NOT using too much paint as you can close off the slits.
Reinstall the encoders with a distance of about 1mm or 2mm off the backside of the read surface, or just so that it isn't touching.
We have performed this trick on many mounts, and it used to be a standard practice with all Hypertunes, but we found not all mounts needed the fix. So we stopped doing it unless they were having odd pulsing problems.
Since the encoders are a shiny aluminum surface, sometimes they reflect and send misread pulses to the Autostar, thus causing it to lose it's orientation and send the telescope off target from where it was going.
Aqui dicen que hay que pintar las ruedas plateadas de los motores, porque su reflejo puede producir errores. Habeis oido algo de esto?.
Tambien tengo otro problema, y es que el eje AR tiene una pequeña holgura que produce inestabilidad.
Gracias
