Quote:
Originally Posted by mick pinner
l couldn't do a full 360 due to scope tubes but 180 gives me 2048 so yes RA is 4096.
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Hi Mick,
Great. At least you have been able to identify that the installed encoders
are providing 4096 steps rather than 8192 steps.
Just to make sure there is no discontinuity anywhere, such as a gear slipping
on an encoder shaft because a set screw is not tightened of the like,
highly recommend you perform what we call the Daytime Encoder Test.
See the User Manual pp 116-117 under a title by the same name for details.
As the name of the test implies, it is best performed during daytime using
a fixed terrestrial object as a target. Once again, you will use MODE ENCODER
to check that when you rotate the scope around in both axes and re-acquire
and re-center the target that the encoder step count returns to the original
starting point with a step or two.
What we recommend is that you initially center the target with the unit powered
OFF. Then power the unit on which will zero the encoder count which
makes it easier to reference when you come around 360 degrees again.
If observing the STEPS display in MODE ENCODER, keep in mind that the
display will wrap at 4095 back to 0.
Double check that the encoder cables aren't swapped. In MODE ENCODER,
when you move the scope in RA, the left-hand displayed value should change.
Once you have performed the Daytime Encoder Test, during the early evening
polar align the mount and align on RIGEL. Confirm that you can then
GUIDE to BETELGEUSE, SIRIUS, PROCYON & CANOPUS.
Best Regards
Gary Kopff
Managing Director
Wildcard Innovations Pty. Ltd.
20 Kilmory Place, Mount Kuring-Gai
NSW. 2080. Australia
Phone +61-2-9457-9049
Phone +61-2-9457-9593
sales@wildcard-innovations.com.au
http://www.wildcard-innovations.com.au