Quote:
Originally Posted by Astromaniac
G'Day Gary,
Thanks for your detailed reply. Much appreciated. I will follow up all of your points to the best of my abilities. The scope is almost , very almost, finished.  The ArgoNavis I have come with two encoders which I'm not sure about. They only have a number on them: one 8192 and the other 4096. The latter has a small footprint. So what is their true resolution? I've read somewhere that you multiply that number by four to get the true resolution. Is it true? Anyhow I will follow up with the links you gave me and go from there. I've joined the ArgoNavis forum already and I'm learning a lot.
Thanks again, cheers,
John |
Hi John,
Great to hear the scope is almost finished and we are looking forward to
hearing of your first light report.
The encoder marked 8192 will be 8192 steps and the encoder marked
4096 will be 4096 steps.
So one would enter 8192 and 4096 into the Argo Navis setup menus for
SETUP ALT STEPS and SETUP AZ STEPS depending on which axis
the encoders were mounted.
Since they were marked with the actual encoder steps they were most
likely originally supplied by JMI, possibly some time before 2005.
The 4096 step was most likely on a mount where it was geared 2:1
to provide 8192 steps effective. Perhaps a fork mounted Schmidt-Cassegrain.
The actual part numbers of the encoders are of the form S2-2500-250-IE-D-D
where S2 denotes the package style, 2500 denotes the counts per
revelation which you multiply to get the actual step count and 250 denotes
a 0.25" diameter shaft. So in this example, a 10,000 step encoder in
a 2.2" diameter body package and a 1/4" diameter shaft.
If you have not done so already, you might want to check which version
of the firmware is loaded. Dial up MODE STATUS, STATUS VERSION.
We provide a free license to the latest firmware version 3.0.1.
Get a Registration Code from here :-
http://www.wildcard-innovations.com.au/register.html
User the Registration Code to download from here :-
http://www.wildcard-innovations.com...._download.html
If you need help, simply email or phone.
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