PwnCNC 4th Axis Rotary System for MASSO CNCAdd rotary carving, indexing, and cylindrical machining capability to a compatible PwnCNC or MASSO-controlled CNC.This preassembled fourth-axis rotary system combines a 100mm four-jaw chuck, matching tailstock, and PwnCNC closed-loop 2Nm stepper motor. It is designed for plug-and-play use with supported PwnCNC machines and conversion kits, while other MASSO Touch installations may require additional power and inlet hardware.Best For Rotary engraving and carving Table legs, handles, columns, and cylindrical stock Indexed machining on multiple faces Custom round parts, signs, and decorative work Headstock Specifications Chuck: K12 100mm four-jaw chuck Through-hole diameter: 22mm Drive: 6:1 belt reduction Rotation resolution: 0.3 degrees per step Includes anti-jaw set and chuck tools Tailstock Specifications Taper: MT2 Total height: 115mm Center height: 65mm Travel: 50mm Includes standard tailstock center Optional pointed, convex, and ER11 tailstock heads are sold separately.Closed-Loop Stepper Motor Holding torque: 2Nm Input voltage: 20–50V DC Recommended operating voltage: 36V DC Output shaft: 8mm Maximum pulse rate: 200kHz Compatibility PwnCNC Dominator Pro, Dominator Core, and supported PwnCNC MASSO conversion systems: Designed for plug-and-play connection. Other MASSO Touch CNC machines: May require a compatible stepper inlet cable, power adapter, and external power supply. Confirm available mounting space, center height, controller I/O, power requirements, and machine configuration before ordering.What’s Included Rotary headstock assembly 100mm four-jaw chuck Closed-loop 2Nm stepper motor Matching MT2 tailstock Standard tailstock center Anti-jaw set and chuck tools Important NotesRotary setup requires machine-specific mounting, alignment, workholding, and controller configuration. Additional adapters, cables, power hardware, or mounting fixtures may be required for non-PwnCNC installations. Always verify clearance and secure the rotary assembly before operation.