AMFOC01

AMFOC01 – Advanced Open-Source Telescope Focuser

Take your astronomical imaging and observing to the next level with the AMFOC01—an advanced focuser designed for demanding astronomers and tinkerers. Engineered for precise, smooth, and ultra-quiet focusing, AMFOC01 uses the state-of-the-art TMC5130 micro-stepping driver and RP2040 processor to eliminate vibration and guarantee repeatable results, night after night.

Although AMFOC01 is built primarily for astronomical telescopes, its flexible, adaptable design means it can serve in a wide range of optical applications, including scientific and DIY setups. Full open-source hardware, firmware, and software ensure total freedom for modifications and custom integrations.

Key Features

• Smooth, High-Precision Focusing: The combination of TMC5130 micro-stepping and the modern RP2040 processor guarantees gentle, accurate, and silent focus adjustments—no more image shifts or motor jitters.
• Universal Power Compatibility: Operates on 9–16 V DC, so you can power it from a car battery, field supply, or observatory setup. Uses a standard 5.5/2.1 mm coaxial connector.
• User-Friendly Interface: Large red OLED display with four intuitive buttons makes manual focusing a breeze—even in complete darkness. Connect to your computer via USB-C and control AMFOC01 with any MoonLite-compatible software (such as KStars/INDI/Ekos).
• Real-Time Temperature Compensation: Built-in thermometer enables automatic focus correction as ambient temperature changes—perfect for astrophotography and long observing sessions.
• Manual or Automated Control: Enjoy the freedom to focus using either the convenient hand controller or advanced automation from your favorite astronomy software.

Versatility & Integration

AMFOC01 is ready to integrate with nearly any telescope or optical system. 3D-printable mechanical adapters can be created to fit your specific setup, and the compact design is easy to mount. Whether you’re retrofitting an older telescope or building a new imaging rig, AMFOC01 gives you the flexibility and reliability you need.

100% Open Source

This project is completely open-source—including hardware, firmware, and control software. You’re free to inspect, modify, and extend every aspect. We also offer support and can provide custom modifications for unique applications.

Documentation

Find technical details, pinouts, setup guides, and troubleshooting tips in the official documentation.

Who is it for?

AMFOC01 is the perfect focuser for anyone who demands reliable, accurate focusing—whether you’re an amateur exploring the night sky, an astrophotographer seeking pinpoint stars, or a researcher with special optical needs.