Compact, precise linear motion module designed for DIY camera projects and small automation tasks. This 8mm stepper electronic starter combines a 2phase 4wire stepping motor with an integrated screw shaft moving block to give smooth, repeatable 10mm linear travel for fine adjustments and controlled positioning. Key benefits Precise micropositioning: The stepperdriven screw shaft converts rotary steps into accurate linear movement, ideal for focus pulls, microsliders, and repeatable adjustments. Compact and easy to integrate: Small 8mm form factor fits tight builds and custom rigs where space is limited. Ready for controlled motion: As a stepping electronic starter, it provides a straightforward way to add steppercontrolled linear travel to DIY camera equipment and small mechanisms. Main features and specifications Shaft diameter: 8mm Motor type: 2phase, 4wire stepper motor Mechanism: Screw shaft with moving block (linear slider) Stroke (linear travel): 10mm Intended use: DIY camera and small precision linear motion applications Functionality and compatibility Converts stepper motor rotation into linear motion through an integrated screw shaft and moving block. Works with standard 2phase stepper motor controllers and drivers using the 4wire connection. Suitable for manual assembly into custom rigs or for use as a modular component in automated systems. Performance and usability Provides smooth, repeatable linear motion over a controlled 10mm range for small adjustments. The 2phase, 4wire stepping design supports precise step control and microstepping when used with compatible drivers. Compact package simplifies mounting and incorporation into camera rails, lens control assemblies, and small automation projects. Practical applications (use cases) Macro photography focus rail: Add precise, repeatable 10mm moves to focus stacking or closefocus adjustments. Small camera slider / timelapse rig: Use for subtle, controlled camera translation for shortrange sliding shots and motioncontrolled timelapse sequences. Automated lens or sensor positioning: Integrate into DIY rigs that require fine linear displacement for alignment, calibration, or small pickandplace tasks. Installation tips Connect the 4 wires to a compatible 2phase stepper driver and test movement with lowspeed steps before full use. Securely mount the moving block and guide to prevent binding; the compact 8mm form factor is for light loads and short travel applications. Use microstepping on your driver for smoother motion and finer position control within the 10mm stroke. This 8mm stepper electronic starter with a 2phase 4wire stepping motor and screw shaft moving block provides a compact, controllable 10mm linear actuation solution tailored for DIY camera builds and small precision projects.