How to choose between the 3 axis and 4 axis CNC router?
4 Axis Multi Head CNC Router With 4th Axis Rotary Table - EagleTec
4 Axis Cnc Router 3020 T-d300 Mini Cnc Milling Machine With White Control Box Engraver - Wood Router - AliExpress
4 Axis CNC Router Machine with Rotary Table - YouTube
VEVOR VEVOR CNC Router 6040 4 Axis CNC Router Machine 600x400mm CNC Router Kit 1000W MACH3 Control Large 3D Engraving Machine CNC Router Kit with USB | VEVOR EU