The **17PE-66-R** is a specific model of a **Bipolar Stepper Motor**, typically manufactured by companies like Shinano Kenshi or used in specialized industrial and consumer electronics (such as scanners and printers). Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications This motor is part of the "NEMA 17" family, which refers to the faceplate size (1.7 x 1.7 inches). | Feature | Specification (Typical) | | :--- | :--- | | **Type** | Bipolar Stepper Motor | | **Step Angle** | 1.8° (200 steps per revolution) | | **Phase Count** | 2 Phases | | **Rated Voltage** | 12V - 24V DC (Common operating range) | | **Current / Phase** | Approx. 0.8A - 1.2A (Model dependent) | | **Resistance / Phase** | ~5.0 Ohms | | **Inductance** | ~7.0 mH | | **Holding Torque** | Approx. 2.5 kg-cm to 3.2 kg-cm | --- ### 2. Physical Characteristics * **Frame Size:** NEMA 17 (42mm x 42mm). * **Shaft Diameter:** Usually 5mm, often with a "D-cut" for better gear/pulley grip. * **Wiring:** Typically features a 4-pin or 6-pin connector (JST-PH or similar). * **Construction:** Permanent Magnet Hybrid type, combining high torque and precision. --- ### 3. Connection Diagram (Bipolar) The 17PE-66-R usually operates on a 4-wire configuration. If your unit has 6 pins, the center taps are often left unused for standard bipolar driving. | Wire Pair | Function | | :--- | :--- | | **Pair 1 (A/A-)** | Controls Phase A of the electromagnetic coil | | **Pair 2 (B/B-)** | Controls Phase B of the electromagnetic coil | --- ### 4. Electronic Control Requirements To drive this part, you cannot simply apply DC power. You require a **Stepper Motor Driver**. #### Recommended Drivers: * **A4988:** Low-cost, standard for 3D printers. * **DRV8825:** Supports higher micro-stepping (up to 1/32). * **TMC2209:** Silent operation (StealthChop technology). ```cpp // Example Arduino Pseudocode for controlling a 17PE-66-R const int stepPin = 3; const int dirPin = 4; void setup() { pinMode(stepPin, OUTPUT); pinMode(dirPin, OUTPUT); } void loop() { digitalWrite(dirPin, HIGH); // Set direction for(int x = 0; x < 200; x++) { digitalWrite(stepPin, HIGH); delayMicroseconds(1000); digitalWrite(stepPin, LOW); delayMicroseconds(1000); } delay(1000); } ``` --- ### 5. Common Applications * **3D Printers:** Used for X, Y, or Z-axis movement. * **CNC Machines:** Small-scale milling or laser engraving. * **Medical Equipment:** Precise fluid pumping or positioning. * **Scanners:** Paper feed mechanisms.