The TinyG project is a high performance, USB based CNC 6-axis controller that supports XYZ linear and ABC rotary axes with 4 motor outputs. It is designed for small CNC applications and other applications that require highly controllable motion control. TinyG is meant to be a complete embedded solution for small or medium motor control.

Main Features:

• Full, integrated motion control system with embedded microcontroller (Atmel ATxmega192) and 4 stepper motor drivers (TI DRV8811) integrated on a ~4 inch square board
• Four stepper motor drivers
• Accepts G-code from USB port and interprets it locally on the board
• Axis/motor mapping to support dual gantry and other configurations (e.g. XYYZ, XYZA, XYZC...) of a 6-axis control (XYZ + ABC rotary axes) setup
• Acceleration planning performed using constant jerk motion equations (3rd order S curves) for very smooth and fast motion transitions for lines and arcs
• Very smooth step pulse generation using phase-optimized, smart oversampling, fractional step DDA running at 50 Khz with very low jitter (<<1uSec)
• Networkable via RS485 to support motion peripherals and for networking mutliple boards for multi-axis systems and for really interesting projects (up to 1000 stepper axes)
• Stepper drivers handle 2.5 amps per winding which will handle most motors up thru NEMA23 and some NEMA34 motors.
• Micro-stepping up to 1/8 (optimized DDA makes this smoother than many 1/16 implementations)

Play video: TinyG Milling