BUILD PATTERNS FOR SURFACES OF A THREE-DIMENSIONALLY PRINTED OBJECT

摘要

Linear lengths of build material are initially deposited spaced apart from one another, with the resulting gaps or offsets filled in by subsequent deposition passes. In this manner, each straight length of material can cool independently before bonding to other adjacent lengths of material, thereby avoiding or mitigating non-axial stresses on each linear length of material as it cools.

主权项

1. A method for forming a portion of an object being fabricated in a three-dimensional fabrication process, comprising:
depositing build material around a two-dimensional cross-section of the object at a first z-axis height thereby forming a border of the object; depositing a first plurality of lengths of build material within the border, the first plurality of lengths spaced apart by a predetermined distance such that there is a gap disposed between each length included in the first plurality of lengths; and depositing a second plurality of lengths of build material including individual lengths deposited in the gaps disposed between each length in the first plurality of lengths to create a substantially closed surface within the border.