TOPOGRAPHIC COMPENSATION FOR A THREE-DIMENSIONAL DUAL PRINTER HEAD PRINTER

A method and three-dimensional printer for compensating for build surface topography. The printer including a controller including executable code to carry out the method of measuring a position of a build surface in a z-axis at a number of points on the build surface when the build surface is pressed against a fixed point on a print head, fitting an x, y-plane to at least three of the number of points on the build surface, leveling the build surface by rotating the x, y-plane around the point of origin in the z-axis, creating a topographic compensation map based on the position of the build surface measured at the number of points on the build surface, and adjusting the distance between the fixed point on the first print head and the build surface during printing referencing the topographic compensation map.