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Peter Zelinski is the editor-in-chief and founding editor of Additive Manufacturing Media, which for over 10 years has reported on the advance of industrial 3D printing technology and its use in production, along with the ways it is changing part design, applications of materials and the organization of manufacturing enterprises. Zelinski is regularly seen on The Cool Parts Show, the video series he co-created on 3D printing for part production, which has been recognized with an award for Best Use of Video in niche media. He is also known for his coverage of machine shops and CNC machining technology, topics he has written about for Modern Machine Shop for over 25 years. He served as this brand’s editor-in-chief from 2016 to 2023, and his column, “The Z Axis,” ran in Modern Machine Shop from 2000 to 2024. A podcaster, Zelinski appears regularly with Additive Manufacturing Media colleagues in AM Radio, and he also co-hosted a limited-run sister podcast, Made in the USA. In 2020, he was co-host of the U.S. Air Force’s week-long event aimed at manufacturing for military readiness and sustainment, the Advanced Manufacturing Olympics. For Additive Manufacturing Media and Modern Machine Shop parent company Gardner Business Media, Zelinski serves as Director of Editorial, working with all the company’s content creators on their work covering production technology in metalworking, plastics processing and composites. Zelinski holds a degree in mechanical engineering from the University of Cincinnati.