Hi Bojan,
Quote:
This link did not work either today (try this one directly copied from Martin's post: http://cgi.ebay.com.au/Oak-Grigsby-R...item5acfd0836c).
It seems it is not optical (has mechanical contacts - brushes), which is not bad as such. Maybe not as reliable as optical, but then, the application on telescope (which moves slowly compared to some other machinery) is not mechanically demanding.
Wether it is good (in terms of resolution) that depends, you will need additional gearbox or pulley-belt system to obtain required number of tics/rev of the mount shafts.
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I use the scope only for visual, so I think with gear ratio 40:1 or even 50:1 I should be ok.
This encoders would cost me only around $40 dollars delivered.
Let me know if you can if they are electrically suitable for this purpose.
Thanks mate
cheers