A method of forming a plurality of effusion holes (106, 702, 704) on a combustor (100, 602) having a surface, the effusion holes (106, 702, 704) each having an outlet on the combustor surface, the method comprising the steps of: rotating the combustor (100, 602) relative to a laser beam, and positioning the combustor (100, 602) to a first position where the laser beam is at a first predetermined angle relative to the combustor surface; said method being characterized in that it further comprises the steps of: pulsing the laser beam at the combustor surface while the laser beam is disposed at the first predetermined angle relative to the combustor surface to form a first plurality of trepan cuts for adjacent holes; adjusting the first predetermined angle to a second predetermined angle relative to the combustor surface by positioning and rotating the combustor relative to the laser beam; pulsing the laser beam at each trepan cut of the first plurality of trepan cuts for adjacent holes while the laser beam is disposed at the second predetermined angle relative to the combustor surface, to thereby form a cut for at least a portion of each effusion hole outlet, wherein each cut overlaps a trepan cut of the first plurality of trepan cuts for adjacent holes; and repeating the steps of rotating, pulsing the laser beam at the combustor surface while the laser beam is disposed at the first predetermined angle relative to the combustor surface, adjusting, and pulsing the laser beam at each trepan cut while the laser beam is disposed at the second predetermined angle relative to the combustor surface to so that each effusion hole has an outlet having a fan shape. rotating the combustor (100, 602) relative to a laser beam, and positioning the combustor (100, 602) to a first position where the laser beam is at a first predetermined angle relative to the combustor surface; said method being characterized in that it further comprises the steps of: pulsing the laser beam at the combustor surface while the laser beam is disposed at the first predetermined angle relative to the combustor surface to form a first plurality of trepan cuts for adjacent holes; adjusting the first predetermined angle to a second predetermined angle relative to the combustor surface by positioning and rotating the combustor relative to the laser beam; pulsing the laser beam at each trepan cut of the first plurality of trepan cuts for adjacent holes while the laser beam is disposed at the second predetermined angle relative to the combustor surface, to thereby form a cut for at least a portion of each effusion hole outlet, wherein each cut overlaps a trepan cut of the first plurality of trepan cuts for adjacent holes; and repeating the steps of rotating, pulsing the laser beam at the combustor surface while the laser beam is disposed at the first predetermined angle relative to the combustor surface, adjusting, and pulsing the laser beam at each trepan cut while the laser beam is disposed at the second predetermined angle relative to the combustor surface to so that each effusion hole has an outlet having a fan shape. pulsing the laser beam at the combustor surface while the laser beam is disposed at the first predetermined angle relative to the combustor surface to form a first plurality of trepan cuts for adjacent holes; adjusting the first predetermined angle to a second predetermined angle relative to the combustor surface by positioning and rotating the combustor relative to the laser beam; pulsing the laser beam at each trepan cut of the first plurality of trepan cuts for adjacent holes while the laser beam is disposed at the second predetermined angle relative to the combustor surface, to thereby form a cut for at least a portion of each effusion hole outlet, wherein each cut overlaps a trepan cut of the first plurality of trepan cuts for adjacent holes; and repeating the steps of rotating, pulsing the laser beam at the combustor surface while the laser beam is disposed at the first predetermined angle relative to the combustor surface, adjusting, and pulsing the laser beam at each trepan cut while the laser beam is disposed at the second predetermined angle relative to the combustor surface to so that each effusion hole has an outlet having a fan shape.