|
These simple controllers have small stepper motors driven by very simple electronics that roughly simulate sidereal speed with two or three optional speeds from a pulse generator.
While it is often possible to use the motor drive hardware to move the motors and add additional hardware to cause micro stepping and then a computer control similar to the EQMOD it is hardly practical. See also the Bartells system. For the cost of parts and design work it would be far cheaper to ditch the EQ3 and replace it with a EQ5/HEQ5 or a HEQ5 Pro with Synscan.
If you just want to display a position on a planetarium program you can add encoders with an Argo Navis. But again that is almost as expensive as a new goto mount.
Barry
|