If there is not quite efficient line alignment solution, users should have a try of high brightness Berlinlasers green line laser module. Usually the real laser line alignment work has no need to spend extra time on manual line drawing or line printing. Only if this laser line module is getting connect with DC input power supply with 3V or 4.2V, it is making sure of immediate and high accuracy green reference line targeting on desired working surfaces effectively.
Usually green line laser alignment is working with the lowest time consumption, it is workable within wide output power range from 5mW to 100mW. Inside its module tube, there is enough space reserving as its metal heat sink cooling system and APC driving circuit board. When this laser line generator is workable within 8 to 10 hours per day, it is easily maintaining its stable enough line alignment in long term use. This high efficiency and low labor force input green laser module is the best solution for laser cutting, laser car wheel alignment system, military targeting and others etc.
http://www.berlinlasers.com/532nm-green-line-projecting-laser-alignment