Dave, I too was looking at this design with Dec motor added in. This would limit the need to mechanically change my dob. Where as with the Alt/Az motorisation, i would have to make significant mechanical changes not to mention iron out the electronics.
However With the Eq platform we still need a way to clutch the Alt/Az so they do not move while tracking on the platform.
This also leaves the door open to make Alt/Az changes later to the Dob when bigger budget becomes available.
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