On the use of multiple layer thicknesses within laser powder bed fusion and the effect on mechanical properties

•A method to produce single Laser Powder Bed Fusion parts containing multiple layer thickness regions in XYZ is presented.•Throughput can be increased through use of coarse layer thicknesses, while maintaining part integrity using finer layers in selective volumes.•Local part properties can be controlled through the design of interfaces between two disparate layer thicknesses.•At present, interfacial porosity dominates failure at the layer thickness boundary.