This video shows how to design the stair handrail file then turning the stair handrail by cnc wood lathe machine. 

CNC wood turning lathe is mainly used for various cylindrical workpiece, bowl sharp, tubular sharp and vehicle wood crafts, such as various staircase column, Roman column, general column, tables or chairs legs, washstand, wooden vase, wooden table, baseball bat, car wooden furniture, children' s bed column, etc.