Fast live tool system

A machine tool accessory comprising:

• an accessory spindle configured to rotate a tool, the accessory spindle being disposed within a monolithic flexure guide, wherein the monolithic flexure guide comprises a base and a moveable portion, the base and the moveable portion being connected by flexible sections;
• a voice coil motor configured to move the accessory spindle laterally relative to the accessory spindle axis, the voice coil motor being configured to move the moveable portion of the monolithic flexure guide with respect to the base, and thereby move the spindle;
• a controller configured to (i) communicatively couple to the voice coil motor, (ii) communicatively couple to one or more external devices, and (iii) cause the voice coil motor to move the accessory spindle in response to signals received from the one or more external devices;
• and
• a position feedback sensor configured to measure the position of the voice coil motor and the moveable portion of the monolithic flexure guide with respect to the base and communicate the position to the controller.