Description:

This project is a motorized autofocus system designed for the Explore Scientific ED102-FC 100 telescope. It's a remix of an original design by the user riff-raff and incorporates technical aspects from the Arduino Motorfocus project found at fehlfarbe's GitHub repository.

Key Features:

Clip-On Design: The autofocus (AF) system is designed to be easily attached and detached from the telescope, providing a convenient way to switch between manual and automatic focusing.
Slide Bearing Construction: Incorporates Igus slide bearings for smooth movement and stability.
Compatibility: Specifically designed for the Explore Scientific ED102-FC 100 (Product Link).
Windows Compatibility Note: When using with MS Windows, an additional resistor is required to prevent the Arduino Nano from resetting.

Parts List:

• Arduino Nano (without pin headers)
• Stepper Motor 28BYJ-48
• Driver Board ULN2003
• Temperature Sensor DS18B20 (requires a 4.7kΩ pull-up resistor)
• 2 x M3x4 Screws
• 2 x M4x60 Screws
• 2 x M3x60 Dowel Pins
• 2 x Igus Slide Bearings GFM-03040-15
• 2 x M4x6x6 Thread Inserts
• 2 x M3x4x5 Thread Inserts
• Wiring

Tolerances and Adjustments:

While the current design meets functional requirements, there is potential for improvement in tolerances to enhance precision.
Users are encouraged to experiment and modify the design to suit individual needs.

Acknowledgments:

Big thanks to riff-raff and fehlfarbe for their inspiring work.

Feedback and Contribution:

Community feedback is highly appreciated to improve the design.
Users are welcome to contribute their modifications and suggestions.