Machine simulation is an effective way of checking additive manufacturing tool paths for both interferences and errors in part produced. This paper presents an algorithm to visually simulate a multi axis additive manufacturing system as it executes a process plan. Simulation results are intended to be used as a verification step before physically producing the part. Verification is particularly important for large builds of expensive materials. The algorithm uses an octree approach to efficiently model the deposition of part geometry and its changes. This paper discusses development of the simulation algorithm, including both the representation of the additive manufacturing machine and the octree data model of the part being produced.

Meeting Name

22nd Annual International Solid Freeform Fabrication Symposium -- An Additive Manufacturing Conference (2011: Aug. 8-10, Austin, TX)


Mechanical and Aerospace Engineering

Research Center/Lab(s)

Intelligent Systems Center


This research was supported by the National Science Foundation grants IIP-0822739 and IIP-1046492. The support from Boeing Phantom Works, Product Innovation and Engineering, LLC, Missouri S&T Intelligent Systems Center, and the Missouri S&T Manufacturing Engineering Program, is also greatly appreciated.

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type




Publication Date

10 Aug 2011

Included in

Manufacturing Commons