I had a similar problem with MyFocuserPro, which uses the MoonLite Indi Driver. Although the Control Panel allowed me to change the maximum position to 100,000, the actual focuser would not move past 10,000. I had to modify the actual Arduino code to change the maximal allowed value there. The change in the control panel was not translated into the Arduino code.

I don't know how the Sesto Senso focuser works, but it is possible that the maximal focus position is similarly set in its microcontroller. If the driver cannot modify that value, changing the value in the Control Panel may similarly have no effect in that case.

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