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Hi Gary and Scott,
The main encoder gears are 90mm diameter with 178 teeth fitted to both the R.A. and Dec. axis and are locked into position with 3 grub screws at 120° spacing.
The smaller 30mm diameter gears fitted to the optical encoders have 58 teeth and a single grub screw to lock them into position.
Altogether this provides 25,141 steps per revolution of the telescope which equates to a telescope pointing accuracy of 0.8 arc minutes ( I think! correct me if I am wrong).
A big thank you to Wildcard Innovations for making my life so much easier for many years through the use of the Argo Navis.
Back in the old Cookbook CB245 LDC days with my 8" scope, the Argo Navis landed deep sky objects on my CCD sensor repeatedly.
Thanks Gary, Thanks Mai
Hope you all have a great new year and I look forward to seeing you at Lostock.
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