An apparatus, comprising: one or more lens assemblies (440 -440); a build platform gantry; a build platform positioned under the build platform gantry; a plurality of mirrors comprising a precursor mirror, an intermediary mirror, and a final mirror configured to direct incident light emanating from the one or more lens assemblies (440 -440) to a specific location on the build platform; an energy patterning unit configured to provide a two-dimensional patterned beam; an image relay configured to receive and direct the two-dimensional patterned beam to the one or more lens assemblies (440 -440); and wherein the final mirror is mounted on a first podium of the build platform gantry which is movable in both of a first direction and a second direction perpendicular to the first direction and rotatable about a first axis, wherein the intermediary mirror is mounted on a second podium of a compensation gantry which is translatable only in the first direction and rotatable about at least a second axis, wherein the incident light travels a first distance from the precursor mirror to the intermediary mirror, wherein the incident light travels a second distance from the intermediary mirror to the final mirror, and wherein the build platform gantry is configured to translate the first podium in the first direction and in the second direction and to rotate the final mirror about the first axis in order to direct the two-dimensional patterned beam at different areas of the build platform to fabricate a part; wherein the compensation gantry is configured to translate the second podium only in the first direction and rotate the intermediary mirror about the second axis to maintain a constant value of a sum of the first distance and the second distance for every position of the first podium and a corresponding position of the second podium. one or more lens assemblies (440 -440); a build platform gantry; a build platform positioned under the build platform gantry; a plurality of mirrors comprising a precursor mirror, an intermediary mirror, and a final mirror configured to direct incident light emanating from the one or more lens assemblies (440 -440) to a specific location on the build platform; an energy patterning unit configured to provide a two-dimensional patterned beam; an image relay configured to receive and direct the two-dimensional patterned beam to the one or more lens assemblies (440 -440); and wherein the final mirror is mounted on a first podium of the build platform gantry which is movable in both of a first direction and a second direction perpendicular to the first direction and rotatable about a first axis, wherein the intermediary mirror is mounted on a second podium of a compensation gantry which is translatable only in the first direction and rotatable about at least a second axis, wherein the incident light travels a first distance from the precursor mirror to the intermediary mirror, wherein the incident light travels a second distance from the intermediary mirror to the final mirror, and wherein the build platform gantry is configured to translate the first podium in the first direction and in the second direction and to rotate the final mirror about the first axis in order to direct the two-dimensional patterned beam at different areas of the build platform to fabricate a part; wherein the compensation gantry is configured to translate the second podium only in the first direction and rotate the intermediary mirror about the second axis to maintain a constant value of a sum of the first distance and the second distance for every position of the first podium and a corresponding position of the second podium.