1. HP‐NTU Digital Manufacturing Corporate Lab School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 Singapore
2. Singapore Centre for 3D Printing School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 Singapore
3. 3D Lab HP Labs HP Inc. Palo Alto CA 94304 USA
4. School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore
5. School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China
6. The George Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332 USA