METHOD AND SYSTEM FOR DETERMINING AN AMOUNT OF PRINTING MATERIAL POWDER IN A MULTI-OBJECT BUILD JOB

摘要

Systems and a method for determining an amount of printing material powder for 3D printing an object in a build chamber of a multi-object printing job. Data on the following is received: a 3D-model of the object, a volume and a surface of the object, data on a thickness of a powder, on characteristics of the build chamber, a volume of a no build zone and a volume of a net build zone, an estimation of a volume of recyclable interstitial powder, on a powder density and on a solid density of the printing material and on a recycling ratio. The following quantities are determined: a volume of the powder layer around the object, a dilated object contribution, the amount of used powder due the dilated object, the amount of lost powder in the no build zone, the amount of lost powder in the net build zone, the contribution of the dilated object to the amount of total lost powder, and the amount of printing material required.