Gearless Direct Drive Telescope Mount DIY Guide For Backlash Free Precision With Real Deal Servo Control Axial Flux BLDC Motors Running FOC And A Smooth High Performance Night Sky Setup
✔️ 93-page guide on axial-flux BLDC motors, FOC, and ODrive v3.6
This book walks through building a gearless direct-drive telescope mount that uses axial-flux BLDC motors with FOC, driven by an ODrive v3.6 controller, and features 14-bit absolute encoders for closed-loop feedback. It covers BLDC motor design, mechanical design using CF-reinforced 3D printing, electronics, OnStepX plugin firmware, and modern control options such as touchscreen hand controllers, web mirroring, and wireless operation via Stellarium, SkySafari, and ASCOM. The guide includes the build of a 13.1" (333 mm) f/4.5 Newtonian Alt/Az GoTo telescope setup.
✅ 93 pages on a gearless direct-drive mount
✅ Axial-flux BLDC motors with FOC control
✅ 14-bit absolute encoders with ODrive v3.6 integration
✅ Includes CF-reinforced 3D printing, electronics, and firmware details
✅ GoTo-ready design for a 13.1" (333 mm) f/4.5 Newtonian Alt/Az telescope
✅ Modern control options: touchscreen, web mirroring, Stellarium/ASCOM
💡 What is a gearless direct-drive telescope mount and why choose it?
This handy concept helps you achieve smooth, backlash-free tracking and precise GoTo performance for astrophotography.
- Direct-drive uses servo control with closed-loop feedback for precise positioning- Axial-flux BLDC motors reduce inertia and provide strong torque at low speeds
- 14-bit encoders with FOC ensure repeatable pointing and minimal drift
- Compatible with touchscreen controllers, web interfaces, and software like Stellarium and ASCOM✝️