CNC 4th & 5th Axis Retrofit Resources 4th axis, CNC retrofit, CNC rotary table How to Add a 4th Axis to a 3-Axis CNC Machine Without an OEM Servo Upgrade How to add an indexed 4th axis: choose the rotary table, compare YD-1 and CSD700 matched servo systems, and check the CNC interface and safety interlocks. Continue Reading
