15BY 15mm 2Phase 4Wire Stepper Electronic Starter Key benefits Precise, repeatable motion: a 2-phase, 4-wire stepper configuration delivers controlled stepping for accurate positioning in small mechanisms. Compact footprint: the 15BY 15mm size makes this unit easy to fit into tight assemblies and portable projects. Integrated mechanical interfaces: the linear screw shaft rod block plus the 13 teeth gear provide ready-made options for converting rotary steps into linear motion or for simple gear-driven transmission. Stable performance: designed for stepping applications to provide consistent, reliable operation in typical DIY and light industrial uses. What it does and why it helps Provides stepper motion control in a small package so you can add precise movement where space is limited. The linear screw shaft rod block simplifies mounting to lead-screw driven slides, micrometers, or actuators, reducing the need for custom adapters. The 13 teeth gear allows straightforward mechanical coupling to other gears, racks, or timing components for basic transmission needs. Important attributes Model/specification: 15BY 15mm 2Phase 4Wire Stepper Electronic Starter. Mechanical features: linear screw shaft rod block and a 13 teeth gear for direct mechanical interfaces. Performance: designed for stable stepping operation in typical stepping applications. Suitable use: intended for DIY projects and small automated assemblies where compact size and stable stepping are required. Compatibility and installation notes Intended for standard 2-phase, 4-wire stepper systems; connect to compatible stepper drivers or controller boards following driver manufacturer guidelines. Mount the unit securely, align the screw shaft or gear with mating components, and verify step direction and wiring before operation. Practical use scenarios Small CNC router or desktop milling: use the unit for fine feed or auxiliary axes where space is limited. Camera slider or focus mechanism: use the linear screw shaft rod block to create smooth, repeatable linear travel. Compact robotics or actuator projects: use the 13 teeth gear to couple the stepper to simple gear trains for position control. Compact, mechanically ready, and built for stable stepping applications in DIY and small automation projects.