You may be interested in this if you are searching a motorfocuser solution:
It only costs US$99 with motor, controller and temperature sensor.It’s really much cheaper than RoboFocus (over US$400). For other motor focuser features, it’s similarto RoboFocus:
- Stepper motor with 8,000 steps per turn
- Only need to connect with USB only, no need to connect with aserial COM port and 12v power.
- Can work with FocusMax with ASCOM standard