The FoxAlien CNC Machine XE-PRO is the first CNC that has linear rails upgrade design in mind. The X and Y axis can be upgraded from steel wheels driven to linear rails driven. The XE-PRO can stay with you from a beginner to a CNC master.
CNC Machine XE-PRO: https://www.foxalien.com/collections/...
Linear Rails Upgrade Kit: https://www.foxalien.com/collections/...