Portable measuring unit
Portable measuring unit ( 1 ) for performing a measuring process for an apparatus for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a holding unit ( 2 ) configured for holding an image detection unit ( 3 ) in a position relative to a sample, wherein the image detection unit ( 3 ) is configured to measure an irradiation pattern of the sample ( 10 ) previously irradiated by the apparatus, wherein the portable measuring unit ( 1 ) is arbitrarily assignable to the or an apparatus.
1. A portable measuring unit for an apparatus comprising an energy beam for additively manufacturing a three-dimensional object, the portable measuring unit comprising:
an image detection unit configured to measure an irradiation pattern generated on a sample by previously irradiating the sample with the energy beam from the apparatus;
a holding unit configured to hold the image detection unit in a position relative to the sample, wherein the image detection unit is detachable from the holding unit;
a base plate configured to hold the sample; and,
wherein the holding unit comprises a plurality of rods, wherein each of the plurality of rods comprises a first end detachably couplable to the image detection unit and a second end detachably couplable to the base plate.
2. The portable measuring unit of claim 1 , wherein the base plate comprises a plurality of separable segments.
3. The portable measuring unit of claim 1 , wherein the base plate comprises a reception to hold the sample.
4. The portable measuring unit of claim 3 , wherein the reception comprises a recess in a top surface of the base plate.
5. The portable measuring unit of claim 1 , wherein the plurality of rods are pivotably attached to a base plate.
6. The portable measuring unit of claim 1 , wherein the plurality of rods are telescopically extendable and collapsible.
7. The portable measuring unit of claim 1 , further comprise an interface configured to enable a communication between the portable measuring unit and the apparatus.
8. The portable measuring unit of claim 7 , wherein the communication between the portable measuring unit and the apparatus is configured to calibrate the portable measuring unit.
9. A method for calibrating at least one apparatus comprising an energy beam for additively manufacturing three-dimensional objects, the method comprising:
transferring a portable measuring unit into a mounted state, the portable measuring unit comprising:
an image detection unit configured to measure an irradiation pattern generated on a sample by previously irradiating the sample with the energy beam from the apparatus;
a holding unit configured to hold the image detection unit in a position relative to the sample, wherein the image detection unit is detachable from the holding unit;
a base plate configured to hold the sample; and,
wherein the holding unit comprises a plurality of rods, wherein each of the plurality of rods comprises a first end detachably couplable to the image detection unit and a second end detachably couplable to the base plate;
measuring the sample using the image detection unit;
evaluating the measurement of the sample to generate a calibration information corresponding to the sample;
transferring the calibration information to the at least one apparatus that generated the irradiation pattern on the sample.
10. The method of claim 9 , wherein the irradiation comprises a grid.
11. The method of claim 9 , wherein transferring the calibration information to the at least one apparatus is performed via an interface on the portable measuring unit.