Process for calibrating an apparatus for manufacturing three-dimensional objects and calibrating apparatus

摘要

Calibration of beam stereolithography equipment making three dimensional object, involves employing co-ordinate reference po on calibration plate, to determine and correct beam position discrepancy through controller. References are established on a plate, to determine a machine co-ordinate system. The beam is deflected to predetermined, desired locations within the co-ordinate system. Differences between actual and desired positions of the beam are measured using the references. Beam deflection is adjusted by the controller, as a function of the differences, hence bringing the machine- and bea coordinate systems into coincidence. An Independent claim is included for corresponding calibration equipment, also for the machine producing the object and the method of using it.