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The Cool Parts Show

The Cool Parts Show is a video series from Additive Manufacturing magazine. Hosted by editor-in-chief Peter Zelinski and senior editor Stephanie Hendrixson, each episode focuses on a cool 3D printed part to explore how it was made and what it reveals about the possibilities of additive manufacturing.

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The Cool Parts Show Team

Peter Zelinski


Peter Zelinski is Additive Manufacturing’s founding editor-in-chief. He helped to launch the publication in 2012, first as a supplement to other sister publications, then as a standalone magazine in its own right starting in 2015. Pete loves additive manufacturing because he sees the advance of AM as the most disruptive technology development of his career. But his interest and expertise is in manufacturing technology overall, particularly CNC machining, having written for Modern Machine Shop magazine for over two decades now. In his dual role, he is the editor-in-chief of this publication as well – only the sixth person in the history of the magazine to fill that role. Pete has a degree in mechanical engineering from the University of Cincinnati, but he was a writer before he was an engineer. He made his first income as a writer at age 14 when he sold an article to a publication covering Dungeons & Dragons.

Stephanie Hendrixson


Stephanie (Monsanty) Hendrixson reports on 3D printing technology and applications as senior editor for Additive Manufacturing, and is also co-host of The Cool Parts Show, a video series that highlights unique, unusual and weird 3D printed parts. She got her start in manufacturing media in 2012, through an internship with AM's sister publication Modern Machine Shop, and continues to contribute to MMS as a guest blogger.

In 2018, Stephanie was part of a panel on “Digital Transformation: Gaining a Competitive Advantage with Data and Diversity” hosted by Women in Big Data at IMTS, and in 2019 she was named among Temboo’s 20 Women in Manufacturing That Are Influencing the Industry.

Stephanie holds a B.A. in English literature and history from the University of Mount Union, as well as an M.A. in professional writing from the University of Cincinnati. She currently serves on the UC Professional Writing Advisory Board.

Stephanie is an avid runner, food enthusiast and sourdough baker. She lives in Ohio with her husband Paul and rescue cat Artemis.

Austin Grogan

Austin joined Gardner Business Media's Custom Content Team in 2017 as the company's first videographer. He works with all 12 brands creating engaging editorial and marketing video content for various segments of the manufacturing industry. To put it in a lighter sense, Austin aims to find the beauty in manufacturing and combine it with technical knowledge for both old and new generations to enjoy through an expanding digital platform. Austin graduated from Ball State University with a B.A. in video production. He spends most of his time immersing himself in geek culture and discovering new hobbies related to that culture.