Gyro-JIG apparatus for repairing a stringed musical instrument

Apparatus for securely holding and manipulating a workpiece for construction or repair, comprising:

• a fixed and stable base:
• a pedestal fixed to and upstanding from said base, and having a vertically adjustable threaded post therein, means atop said pedestal and engaging said threaded post for moving said post vertically as desired, and means for locking said post into a desired position;
• a workpiece support assembly;
• means mounted between said pedestal and said workpiece support assembly for rotating said workpiece support assembly about a horizontal axis while holding the workpiece securely, comprising a first member having a worm gear housed therein, means for rotating said worm gear, a second member having a second gear fixed thereto and engaging said worm gear, whereby rotation of said worm gear moves said second member through an arc;
• means atop said pedestal for holding said workpiece support assembly which is U-shaped, and is removably attached to said pedestal;
• means for securely attaching an workpiece to said workpiece support assembly;
• means for pivoting said workpiece support assembly about a vertical axis while holding the workpiece securely;
• and
• mechanical means integral with said pedestal for moving said workpiece support vertically.