Compact, precise linear motion module for small electromechanical projects. This 5MM precision screw slider integrates a 2phase, 4wire stepper motor with a planetary gearbox and moving block to deliver repeatable, controllable linear travel for DIY phonecamera assemblies and other small devices. Why this module helps you Precise linear positioning: the 5mm precision screw provides fine, repeatable linear movement ideal for focus, lens extension, or microadjustments. Increased torque and stability: the planetary gearbox reduces motor speed and increases output torque, improving control under load and reducing stalling during delicate moves. Easy to integrate: the 2phase, 4wire stepper design is compatible with standard stepper control approaches, allowing straightforward control from common stepper drivers and microcontrollers. Compact and applicationfocused: designed for smallscale projects where space and precision matter, such as phone camera mods and compact automation. Key features and attributes Functionality: Converts rotary stepper motion into smooth linear travel via a precision 5mm screw and moving block. Motor type: 2phase, 4wire stepper motor providing precise stepbased control. Gearbox: Integrated planetary gearbox for gear reduction, higher output torque, and improved positional resolution. Size and travel: Built around a 5mm precision screw for fine linear displacement and compact installation (refer to product images/spec sheet for physical dimensions). Performance: Engineered for repeatable micropositioning and controlled linear actuation in lightweight to moderateload applications. Compatibility: Works with standard stepper control systems and common microcontrollerbased driver setups that support 2phase, 4wire steppers. Applications: Designed for DIY and prototype work where precise linear motion is required. Typical use cases Phone camera or small camera modules: implement controlled lens extension, automated focus mechanisms, popup camera actuators, or microadjustment stages for mobile imaging projects. Precision DIY mechanisms: integrate into compact linear stages, sensor positioning assemblies, robotics endeffectors, or small automated fixtures that require repeatable linear movement. Hobby and prototyping: ideal for makers building compact motion systems, timelapse sliders for miniature cameras, or experimental devices that need accurate, repeatable linear control. Practical notes Control: Requires a stepper driver and appropriate control signals for 2phase, 4wire operation; microstepping can improve smoothness and positional resolution. Mounting and integration: The moving block and screwbased travel make it straightforward to couple an external component (lens, sensor, small platform) for linear actuation; check physical dimensions for fit in your design. Load considerations: The planetary gearbox increases available output torque, but overall load capacity depends on gearbox ratio and motor limits; match your application load to expected module capability. This module brings compact, accurate linear motion to small electronics and imaging projects by combining a 5mm precision screw slider with a 2phase, 4wire stepper motor and planetary gearbox—an engineered option for DIY phone camera assemblies and other micropositioning applications.