Everything you can assume within the Shapeoko 4 is more powerful V-wheels, expanding strength and rigidity from your prior design, new strong V3 electronics that happen to be far more immune to electromagnetic interference and static discharge, a thicker router mount, and entirely supported Y extrusions.  As well as laser https://donovanjgxrh.tkzblog.com/26500717/cnc-router-machine-fundamentals-explained