How Three scan planes work

The vertical scan plane or elevation plane can be set to earth level or "bucked-in" to a surface. If needed the second plane can be shot into another datum or line which than makes the third scan plane automatically square to the other two planes. An example is a boring mill, in which we would buck into the base ways or table top, then buck-in to then a second datum such as the x axis (two point buck-in), once this is done the third scan plane is automatically square to the other two and we can measure the relationship of the column to our base plane.

The term "buck-in" refers to the process of creating a plane or line by picking either three points on a surface and making the laser parallel to those three points in space or for a line, making the laser parallel to two points in space. When we do both of these procedures we call it a 5-point buck-in.