IT WORKS Laser Pointer Update

I was watching a WWII documentary about the Dambusters. . Part of this was to fly at 150 feet off the water. . SO, they installed lights to let them now when they were at the correct height See this. . I installed another laser pointer that is a cross, here The mount is here. . SO, when i adjust the height of my OMTech bed the lines separate and come together when it is at the proper height. No matter what the new height is Works pretty good so More improvements to come. Please leave me your thoughts in the comments THANKS FOR WATCHING