High-torque geared stepper motor with 60N.cm of pull-in torque Lifts imaging payloads up to 6 kg USB-C and 2.4GHz WiFi connectivity for OS-independent control Universal L-bracket and 5 couplers (4mm to 8mm) for wide compatibility Includes 9-bit external temperature sensor for focus compensation Description FAQ Specifications In the Box Downloads Warranty Pegasus Astro FocusCube v3 Universal The Pegasus Astro FocusCube v3 Universal integrates a high-resolution geared stepper motor with 60N.cm of torque to precisely position heavy imaging trains without slipping. Powered and controlled via a single USB-C cable drawing a maximum of 900mA at 5V, it maintains critical focus across a wide -30 °C to +80 °C operating range. The entire 260g system includes a 9-bit thermal sensor for automatic temperature compensation and fits into a compact 59 mm x 50 mm x 44 mm enclosure. High-Torque Stepper: 60N.cm for Heavy Payloads At the core of the FocusCube v3 is a geared stepper motor engineered for modern astrophotography payloads. The motor delivers 60N.cm of pull-in torque, enough to lift up to 6 kg of camera, filter wheel, and corrector, even when the telescope is aimed at the zenith. The design minimizes backlash, ensuring that autofocus routines produce sharp, repeatable V-curves without mechanical play compromising the result. OS-Independent Control: USB-C, 2.4GHz WiFi & Native Alpaca The FocusCube v3 eliminates software and hardware dependencies with its flexible connectivity. A single USB-C cable provides both 5V power and data, while built-in 2.4GHz WiFi allows for complete wireless control. With a native web server and ASCOM Alpaca support, you can control the focuser from any device with a web browser—PC, Mac, smartphone, or tablet—without needing specific drivers. This dual-control architecture lets you operate via USB and WiFi simultaneously for maximum flexibility in the field. Universal Mounting: 5 Couplers for 4mm to 8mm Focusers Designed for broad compatibility, the FocusCube v3 includes a versatile Universal L-bracket with custom rails and mounting holes to fit a wide range of focusers. The package includes five solid motor couplers with bore diameters from 4mm to 8mm, ensuring a secure, slip-free connection to your focuser shaft. This system has been successfully installed on focusers from Baader, Explore Scientific, MoonLite, Sky-Watcher, Starlight Instruments, Takahashi, Stellarvue, and William Optics. Automated Focusing with 9-bit Temperature Compensation Achieve and maintain perfect focus throughout the night. The FocusCube v3 includes an external temperature sensor with 9-bit resolution, allowing your imaging software to monitor ambient temperature changes precisely. By correlating focus point drift with temperature, the system automatically makes micro-adjustments, ensuring your stars remain sharp from dusk till dawn. This "focus and forget" capability is essential for long-exposure imaging, especially with fast optical systems sensitive to thermal expansion and contraction. How much weight can the FocusCube v3 Universal lift? The FocusCube v3 is equipped with a high-resolution geared stepper motor that provides 60N.cm of pull-in torque. This allows it to lift an imaging payload of up to 6 kg (13.2 lbs) without slippage, even when the telescope is pointed directly at the zenith. What focusers are compatible with the FocusCube v3 Universal bracket? The Universal L-bracket is designed for wide compatibility. The package includes five different motor couplers to fit focuser shafts with diameters from 4mm to 8mm. It has been confirmed to work with major brands such as Baader Steeltrack, MoonLite, Starlight FeatherTouch, Takahashi, William Optics, and many others. How can I control the FocusCube v3 from my phone while observing Jupiter with my SCT? You can control the FocusCube v3 directly from your smartphone's web browser. Connect your phone to the focuser's WiFi hotspot, and the control interface will appear automatically. This allows you to make fine focus adjustments remotely while looking at your screen, without needing a PC at the telescope—perfect for planetary imaging or visual use. Does the FocusCube v3 require a separate 12V power cable? No, the FocusCube v3 is powered entirely by the 5V USB-C connection. A single cable handles both power and data, simplifying your cable management. It draws a maximum of 900mA, which is compatible with most modern USB ports and powered hubs. How does the FocusCube v3 handle temperature changes during an imaging session of the Orion Nebula (M42)? The included external temperature sensor, which has a 9-bit resolution, constantly monitors the ambient temperature near your focuser. As the temperature drops during a long imaging session, the FocusCube v3 works with your automation software (like NINA or SGP) to make precise adjustments. This compensates for the thermal contraction of your optical tube, keeping M42's stars sharp all night. What software is the FocusCube v3 compatible with? The FocusCube v3 supports the latest ASCOM, ASCOM Alpaca, and INDI frameworks. This ensures out-of-the-box compatibility with all major astrophotography software, including NINA, Sequence Generator Pro (SGP), Voyager, APT, MaximDL, and more. It can also be controlled directly through the Pegasus Astro Unity Platform. Power Requirements 5V DC from USB-C Port Current Draw Max 900mA @ 5V Connectivity USB-C Socket (USB2) Motor & Torque High-resolution geared stepper motor, 60N.cm pull-in torque Thermal Sensor 9-bit resolution Operating Temperature -30 °C to +80 °C Dimensions 59 mm x 50 mm x 44 mm Weight 260g FocusCube V3 Controller × 1 Temperature Sensor × 1 Universal L Bracket × 1 USB-C Cable (1.8m) × 1 Motor Couplers (4mm to 8mm) × 5 Assorted Metric Screws & Washers × 1 Set M3x8mm Screws for Enclosure × 6 Documentation × 1 Development × 1 Documentation × 1 FocusCube v3 Product Manual × 1 Development × 1 Command List × 1 Download Manual Download Unity Platform Pegasus Astro 2-Year Warranty
