V-Slot vs T-Slot CNC Router Extrusions: Motion vs Structure
The Real Choice Behind V-Slot and T-Slot The V-slot vs T-slot showdown usually gets treated like a simple strength contest. That framing misses the part that decides whether a CNC router feels precise or fussy after the first few weekends of use: every extrusion should be assigned a job based on whether it must move or stay fixed. A CNC frame is really two machines stacked together. One part is a motion system, where friction, alignment, and wear dominate. The other part is a structure, where stiffness, joint area, and torsional resistance matter most. V-slot and T-slot exist to serve those different jobs. ...