Method and apparatus for a re-coater blade alignment

1. A method comprising:

adjusting an optical measurement apparatus over a surface of a material to align the optical measurement apparatus with a reference plane of the material;

positioning a re-coater assembly, the optical measurement apparatus, and the material such that the re-coater assembly is between the optical measurement apparatus and the material, and so a re-coater blade of the re-coater assembly is positioned proximate to the material; and

adjusting the re-coater assembly to align the re-coater blade in parallel with the optical measurement apparatus.

2. The method of claim 1 , wherein adjusting the optical measurement apparatus further comprises detachably coupling the optical measurement apparatus to a rapid prototyping and manufacturing machine.

3. The method of claim 2 , further comprising movably coupling the re-coater assembly to the rapid prototyping and manufacturing machine for moving the re-coater blade relative to one of a longitudinal direction or a lateral direction.

4. The method of claim 1 , wherein adjusting the optical measurement apparatus comprises:

transmitting a plurality of first energy from a plurality of energy devices to the surface of the material, wherein the plurality of energy devices is positioned at a plurality of first locations along a length of the optical measurement apparatus;

receiving a plurality of reflected first energy from the surface of the material;

measuring a plurality of first radial distances between the surface of the material and the optical measurement apparatus based on the plurality of reflected first energy to determine a first reference plane of the optical measurement apparatus; and

calibrating the optical measurement apparatus via a plurality of first aligning elements of the optical measurement apparatus until a plurality of measured first radial distances are equal, thereby aligning the first reference plane with the reference plane of the material.

5. The method of claim 4 , wherein positioning the re-coater assembly, the optical measurement apparatus, and the material comprises vertically aligning the plurality of energy devices with a plurality of target elements of the re-coater assembly, wherein the plurality of target elements is positioned at a plurality of second locations along a length of the re-coater assembly.

6. The method of claim 5 , wherein adjusting the re-coater assembly comprises:

transmitting a plurality of second energy from the plurality of energy devices to the plurality of target elements;

receiving a plurality of reflected second energy from the plurality of target elements;

measuring a plurality of second radial distances between the optical measurement apparatus and the re-coater assembly based on the plurality of reflected second energy to determine a second reference plane of the re-coater assembly; and

calibrating the re-coater assembly via a plurality of second aligning elements until a plurality of measured second radial distances are equal, thereby aligning the second reference plane with the first reference plane.

7. The method of claim 6 , wherein calibrating the re-coater assembly comprises at least one of:

moving one or both sides of the re-coater blade relative to a radial direction; and

rotating the re-coater blade relative to one of a longitudinal direction or a lateral direction.

8. The method of claim 1 , further comprising moving the re-coater blade away from the surface of the material relative to a radial direction by an offset distance to define a gap between the re-coater blade and the material.