250mm MGN12 Linear Rail Guide With MGN12C Carriage Block For 3D Printers And CNC Machines, Heavy Duty Precision Rails For Smooth Motion, Mounts With 4 M3 Bolts, Ideal For DIY Prototyping

Single-set 250mm MGN12 Linear Rail Kit with MGN12C Block
✔️ 250mm rail with MGN12C block, 4-M3 holes, 2 spare balls

This compact linear rail kit delivers precise straight-line motion for DIY CNC machines and 3D printers. The 250mm rail runs smoothly with the MGN12C carriage block for accurate positioning and repeatability. This set is typically mounted to aluminum profiles using M3 bolts and T nuts.

✅ 250mm linear rail guide with MGN12C carriage block
✅ Includes 2 spare balls in the package for backup
✅ 4-M3*3.5 threaded holes on the block; center distance 15*20mm
✅ Mounts to 20-series EU aluminum profiles with M3 bolts and T nuts
✅ Red rubber stoppers to keep the block on the rail

💡 What is a linear rail guide with MGN12C block used for in DIY CNC machines and 3D printers?

It's a handy, compact motion system for precise, smooth travel.

- High rigidity supports accurate positioning
- Designed for 250mm rails in small-format builds
- Mounts to 20-series EU profiles using M3 hardware
- Includes spare balls and red stoppers for maintenance✝️