Quote:
Originally Posted by mick pinner
thanks for the response Gary, l retried again tonight with the same result, encoder direction seems to be right so l am thinking that l have the wrong ammount of steps put in for the encoders, l had no way of determining this when l bought the mount secondhand so guessed at 8192 but am thinking now maybe they are 4096. would this account for the inaccurate goto's? Mick.
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Hi Mick,
Depends on the vintage of the mount.
Prior to 2003 Losmandy use to ship a solution that provided 4096 steps on each axis.
Then in 2003, I flew to Hollywood, met with Losmandy and recommended they
migrate to the 8192 step solution, which they did in that year.
Try this. Dial up MODE SETUP ALT STEPS and enter some large
arbitrary value, such as 100,000. With the Dec cross axis in the
horizontal position, sight and center some distant terrestrial object.
Power OFF the unit and then power it ON. Dial up MODE ENCODER.
Spin the dial one detent click to show encoder steps.
Note the right-hand displayed value which is the Alt encoder value.
Start to rotate the OTA so the count increases, 0, 1, 2, 3, etc.
Rotate the OTA through 360 degrees and re-acquire and re-center the
target. Note the step count on the display. If it is close to 4096 it will
be 4096 steps. If it is close to 8192 it will be 8192 steps. Enter either
4096 or 8192 into SETUP ALT STEPS.
Best Regards
Gary Kopff
Managing Director
Wildcard Innovations Pty. Ltd.
20 Kilmory Place
Mount Kuring-Gai NSW 2080
Australia
Phone +61-2-9457-9049
Fax +61-2-9457-9593
sales@wildcard-innovations.com.au
http://www.wildcard-innovations.com.au