Hello
Thanks Lee and Malcolm for your responses.
Ok, I think I am making a little progress.
- a4988 stepper motor driver board
This one
http://www.australianrobotics.com.au...driver-carrier
or this one
http://www.australianrobotics.com.au...ig-easy-driver
- One of these stepper motors?
http://www.australianrobotics.com.au...stepper-motors
As to how I am going to mechanically attach the thing I am not 100% sure, it was going to be a "get it and tinker" kinda deal. A timing belt and pulley system to turn the focuser and not too sure yet about much else!
I am figuring if I can get the electronic components right (motor, driver etc) then I will just play with it to get the mechanical part right.
Thank you again for your help
Jeremy