Weekends are a precious commodity, and I like to make mine count by learning new skills, making new items, or putting sweat equity into my house. But this weekend I'm going to be bringing a piece of movie magic to life by building my own 3D hologram projector for my iPhone. I know what you are thinking. I don't have an engineering degree or the expertise needed to create something so complicated. Wrong. All you need is a CD case, an x-acto knife, graph paper, tape, and a pen. In three steps you too will have a 3D hologram projector of your very own.
Check out these homemade projectors in action!
About the Author
Alexis GajewskiAlexis Gajewski
Senior Content Strategist
Alexis Gajewski is a manufacturing writer and editor with nearly 20 years of experience covering the people, practices, and technologies that keep industrial facilities running. For more than a decade, she served as Senior Content Strategist for Plant Services, creating content for plant managers, engineers, and maintenance professionals on a variety of industrial topics.
During her tenure, Alexis worked to develop the brand’s digital strategy and helped launch and produce Great Question: A Manufacturing Podcast. She also created The Lighter Side of Manufacturing, a weekly blog that explored the inventive and sometimes humorous side of the industry.
Alexis co-founded Influential Women in Manufacturing, a recognition program that honored 49 women in its first two years, earned an industry award for Best Product Launch, and received a proclamation from Illinois Governor JB Pritzker and a commendation from U.S. Senator Tammy Duckworth.
She also led newsroom operations and development at a large media company where she set editorial standards, developed training curriculum, and helped support AI adoption for more than 150 editors across 80+ brands spanning manufacturing, industrial processing, automation, and more.
Additionally, Alexis works as a freelance writer and editor, and her areas of interest include continuous improvement, the skilled workforce, and the role of emerging technology on the plant floor.
Connect with Alexis on LinkedIn

