5MM Precision Screw Slider Stepper Electronic Starter — 2Phase 4Wire with Planetary Gearbox Moving Block for DIY Phone Camera Projects Key benefits Precise linear motion in a compact package: the 5 mm precision screw slider converts rotary stepper motion into smooth, repeatable linear travel, ideal for focusing, microsliding, and camera positioning. Accurate, controllable actuation: the 2phase, 4wire stepper motor provides reliable step control and easy integration with common stepper drivers and controllers. Higher torque and low backlash: the integrated planetary gearbox increases output torque and improves motion stability for small loads, giving steadier, more predictable movement. Ready for DIY camera and phone projects: designed for small optical devices and hobby electronics, the module simplifies building sliders, focus rigs, and precision stages. Product highlights and attributes Functionality: Rotarytolinear actuation via a precision screw and moving block (slider); stepperdriven for micro position control and repeatability. Motor type and wiring: 2phase, 4wire stepper motor — compatible with standard bipolar stepper drivers and easy to pulse for step/position control. Gearbox: Builtin planetary gearbox to boost torque and reduce effective step size, improving holding and dynamic performance under load. Size and form: 5MM precision screw specification provides compact linear travel suitable for small or narrow assemblies such as phone and small camera housings. Moving block: Lowfriction slider (moving block) designed to carry small masses and provide guided linear travel. Intended use: Described as an electronic starter for stepperdriven assemblies and tailored for DIY phone camera and small photography rigs. How it solves common problems Eliminates handfocusing jitter by providing controlled, repeatable linear motion for lenses and phone cameras. Reduces motor stalling and increases holding power for small loads by using a planetary gearbox. Simplifies prototyping and retrofitting into compact enclosures thanks to the small 5 mm screw and compact assembly. Typical applications Phone camera slider or timelapse rig: Add smooth, programmable slide or focus control to smartphone camera mounts for motion timelapse, stabilized pans, or precision focusing. Macro and micro focus stage: Use as a miniature linear stage for macro photography, focus stacking rigs, or small optical alignment tasks. DIY robotics and automation: Integrate into compact mechanisms that require small, accurate linear travel and controllable positioning. Compatibility and integration notes Interfaces with common stepper drivers and microcontrollers that support bipolar stepper control (step/dir or equivalent). Suited for smallload applications typical of phone and compact camera modules, lens focusing mechanisms, or miniature positioning tasks. Mechanical mounting requires consideration of the 5 mm screw and moving block dimensions when planning integration into enclosures or rigs. Why choose this module Combines a compact 5 mm precision screw slider with a 2phase, 4wire stepper motor and planetary gearbox for a balanced solution of size, control, and torque. Designed for DIY builders, photographers, and hobbyists who need a dependable, smallform linear actuator for camera and phone applications. Straightforward to drive, easy to integrate, and effective at improving precision and repeatability in small motion systems.