Two 100 mm MGN12C linear guide rails with four carriages provide precise, smooth linear motion for compact CNC and 3D printer projects. This configurable kit is designed to fit standard MGN12C profiles, enabling reliable performance in smallscale axes and automation setups. The arrangement includes two rails and four blocks, suitable for building stable linear guides on compact machines. Key benefits Precise and smooth motion: designed to reduce play and deliver consistent, repeatable positioning in tight assemblies. Reliable performance in small tools: ideal for compact CNC axes, 3D printer axes, and lightweight automation tasks. Easy integration: uses common MGN12C mounting patterns, simplifying installation on compatible frames and carriages. Flexible, setup: two rails and four blocks enable versatile axis configurations and modular upgrades. Key attributes Functionality: two MGN12C linear guide rails with four carriers for precise linear motion. Compatibility: designed for MGN12C profile systems; suitable for CNC, 3D printers, and small automation projects. Size: two rails, each 100 mm in length (2X100 mm); four guide blocks included. Material: components engineered for compatibility with standard MGN12C hardware (material details not specified here). Performance: stable railtocarriage engagement to support accurate, repeatable movement in compact builds. What's included 2 x MGN12C linear guide rails, each 100 mm long 4 x guide blocks/carriages compatible with MGN12C systems Applications and use cases 3D printer build upgrades: weaker guide components on X or Y axes to improve print quality and axis precision. Small CNC or engraving machines: enable accurate, repeatable motion for hobbyist or desktop milling/engraving operations. Precision automation projects: implement compact linear guides for small robotic arms, XY stages, or lab equipment requiring stable, lowfriction linear movement. Installation and compatibility notes Ensure rails are mounted on a flat, parallel surface to maintain proper alignment of the carriages. Use appropriate mounting hardware compatible with MGN12C blocks and rails. Align blocks along the rails before final tightening to achieve smooth operation and reduce binding. Verify that the mounting pattern matches standard MGN12C configurations to ensure correct fit. Care and maintenance Keep rails clean and from debris; wipe down before assembly. Apply suitable lubricant or light oil to reduce wear and maintain smooth motion. Periodically check block mounting screws for proper tension and realign if movement becomes sluggish or noisy. This kit provides a compact, reliable solution for achieving precise linear movement in CNC and 3D printer projects, with a straightforward tworail, fourblock configuration that fits standard MGN12C systems.