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Hacker News·4 min read·medium

Making holograms with a pen plotter

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DemiGuru
Making holograms with a pen plotter
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A hobbyist explains how to create hand-etched holograms using a pen plotter and simple materials like oil. The process relies on manipulating light reflections off ridges to create moving virtual images.

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I have a pen-plotter! It’s great. It’s like having a printer but slow and it breaks more often. I got it on eBay and it came sorta broken and I immediately spent the difference between what I paid and the price of new one fixing it. Now it’s fixed!

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