A powder bed additive layer manufacturing apparatus for manufacturing a component, the apparatus comprising: a base plate (30, 48) comprising a set of axes X, Y, Z; a first re-coater blade (36, 50); wherein the base plate (30, 48) comprises a build surface (34, 51) for receiving powder, and the build surface (34, 51) comprises a non-planar surface profile for complementing the shape of a component non-planar surface; and the first re-coater blade (36, 54) has a blade profile that corresponds with the non-planar surface profile of the build surface (34, 51); and the first re-coater blade (36, 54) is configured such that it can traverse across the build surface (34, 51), for providing a layer of powder having a consistent depth across the non-planar build surface during a manufacturing process; and the build surface has a non-planar, two-dimensional profiled first cross-section, coincident with the X axis; and the blade profile of the first re-coater blade corresponds with the profiled first cross-section and is configured to linearly traverse across the build surface along the Y axis; Characterized in the apparatus further comprising a second re-coater blade with a second blade profile; wherein the build surface has a non-planar, two-dimensional profiled second cross-section, coincident with the Y axis; and the build surface is defined by the intersection of projecting the profiled first cross-section along the Y axis and projecting the profiled second cross-section along the X axis; and the blade profile of the second re-coater blade corresponds with the profiled second cross-section; wherein the second re-coater blade is configured to linearly traverse across the build surface along the X axis, for providing a layer of powder having a consistent depth across the base non-planar build surface in combination with the first re-coater blade. a base plate (30, 48) comprising a set of axes X, Y, Z; a first re-coater blade (36, 50); wherein the base plate (30, 48) comprises a build surface (34, 51) for receiving powder, and the build surface (34, 51) comprises a non-planar surface profile for complementing the shape of a component non-planar surface; and the first re-coater blade (36, 54) has a blade profile that corresponds with the non-planar surface profile of the build surface (34, 51); and the first re-coater blade (36, 54) is configured such that it can traverse across the build surface (34, 51), for providing a layer of powder having a consistent depth across the non-planar build surface during a manufacturing process; and the build surface has a non-planar, two-dimensional profiled first cross-section, coincident with the X axis; and the blade profile of the first re-coater blade corresponds with the profiled first cross-section and is configured to linearly traverse across the build surface along the Y axis; Characterized in the apparatus further comprising a second re-coater blade with a second blade profile; wherein the build surface has a non-planar, two-dimensional profiled second cross-section, coincident with the Y axis; and the build surface is defined by the intersection of projecting the profiled first cross-section along the Y axis and projecting the profiled second cross-section along the X axis; and the blade profile of the second re-coater blade corresponds with the profiled second cross-section; wherein the second re-coater blade is configured to linearly traverse across the build surface along the X axis, for providing a layer of powder having a consistent depth across the base non-planar build surface in combination with the first re-coater blade.