Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Powder Bed Layer Geometry



Michael L. McGlauflin, Shawn P. Moylan


This paper investigates the measurement of machine performance errors associated with the powder bed geometry of a commercially available laser additive manufacturing (AM) machine. The methodology is based on existing ISO/ANSI standards as employed in computer numerically controlled material removal type machinery. The paper describes the design of the tests and sign conventions. A discussion is presented on which error sources can affect both the powder layer thickness and part geometry. Finally, conclusions are drawn regarding the applicability of existing standards to LPBF machine metrology and includes a discussion of where modifications may be necessary.
Conference Dates
June 27-30, 2016
Conference Location
Raleigh, NC
Conference Title
Dimensional Accuracy and Surface Finish in Additive Manufacturing


Additive Manufacturing, Laser Powder Bed Fusion, Machine Tool Metrology, Standards, ISO, ANSI


McGlauflin, M. and Moylan, S. (2016), Powder Bed Layer Geometry, Dimensional Accuracy and Surface Finish in Additive Manufacturing, Raleigh, NC, [online], (Accessed June 20, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created June 27, 2016, Updated February 19, 2017