***PLEASE, NEVER REMOVE THE FOCUS WHEEL WHEN THE TELESCOPE IS POINTING DOWN!*** (on Maks and possibly SCs the main mirror can drop and be damaged)
To prevent the
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rotation of the tube I use a zip tie, see image above.
This is a stepper motor focus assembly for the Celestron (or Skywatcher) Mak 127. It is Arduino based and provides ASCOM drivers for controlling it. Have a look at: https://sourceforge.net/p/arduinoascomfocuser/wiki/Home/
Via Ascom and a live view you can even have temperature compensated automatic focussing.
My controller als includes a dew cap heater and a Bluetooth connection for controlling it wireless.
