1. A method for pacing the application of a manual weld along a weld line, comprising the steps of: providing a weld line with markings spaced at regular intervals; positioning a module for generating perceivable signals in a welding helmet; generating discrete, timed signals which are perceivable to a welder by the module in the welding helmet as the welder applies a manual weld along the weld line; and temporally controlling the signals at a selected rate corresponding to a rate of welding along the weld line based on the spaced markings.