The product is a two-phase stepper motor, which is mainly used for 3D printing of fine closed-loop positioning, optical precision aiming, speed loop record player, force feedback and other fields. Features: 1. DIP Switch Setting: Using DIP switch setting subdivision accuracy, positive and negative directions, bus control output driver status and control signals, adjustable feedback loop. 2. Closed Loop Control: Closed loop control technology fundamentally solves the problem of motor step loss, and can better control the position accurately. 3. Integrated Design: The motor and driver are combined into one, and the wiring is simpler and clearer. 4. Coil: The coil is made of copper enameled wire, and the internal copper wire is evenly arranged to reduce heat generation. 5. Application Examples: (1) 3D printing with fine closed-loop positioning. (2) Optical precision aiming ( telescope, camera gimbal, etc. ) (3) Record player. (4) Force feedback / impedance control robot. (5) Force feedback of game controller. (6) Adjustable mechanical impedance: virtual spring, damper, etc. (7) Electric transmission device between two axes such as CNC machine tools. (8) Gravity elimination ( eg: offset gravity torque on the robot arm, etc. ) Note: 1. Due to manual measurement, the size may be slightly different. Thank you for your understanding. 2. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object. 3. The product is installed and tested by professionals, and it can be used normally after receiving it. Specifications: Color: Black & Silver Material: Aluminum Alloy + Electronic Components Motor Parameter: Step Angle: 1.8 Rated Voltage: 3.6V Rated Current: 1.5A/phase Holding Torque: 420 mN.m Positioning Torque: 15 mN.m REF Maximum No-load Starting Frequency: 1400 PPS Maximum No-load Operating Frequency: 4000 PPS Phase Inductance: 3.7x (1+20%) mH Phase Resistance: 2.4x (1+15%) /phase Electrical Strength: AC 600V/1mA/1S Wiring Instructions: VCC: Connect 12-30V power supply ( Refer to the working voltage of the motor, general 24V ) GND: Ground wire CLK: Control signal ( Connected to pulse input ) DIR: Direction control signal ( Floating forward, ground reverse ) ENA: Connect to enable signal ( Default enable, grounding stops working ) COM: Connect to 3.3V common anode Item Size: 4.1*4.1*4cm / 1.61*1.61*1.57in Packing Size: 12.7*8*7.8cm / 5.04*3.15*3.07in Net Weight: 279g / 9.84oz Gross Weight: 345g / 12.17oz Package List: 1 * Stepper Motor ( with Driver Board ) 1 * Wire 1 * Manual ( English + Chinese )