In an innovative (and somewhat terrifying) experiment, YouTuber Emily The Engineer has transformed a 3D printer into a functioning tattoo machine. The bold endeavor involved bypassing the printer’s original firmware, adding a tattoo gun, and testing the creation on a willing volunteer.
Emily, known for her various engineering projects, is no stranger to building unusual machines, including attempts like the world’s largest Benchy boat (via Hackaday). However, this venture marked uncharted territory—printing on human skin. The process began by disassembling an old 3D printer frame that could map out the X and Y axes of a 2D design, which is critical for tattooing. To ensure accuracy, a small amount of Z-hop was added between strokes to prevent unintended lines.
The first step of the experiment involved testing the tattoo machine on practice material. Despite being a newcomer to tattooing, Emily quickly installed the tattoo gun onto the print head, taking a leap of faith with her own creation. However, an issue arose: the 3D printer could only print on flat surfaces, and the human body, specifically Dan’s leg, is not flat.
Instead of redesigning the entire setup, Emily devised a solution by creating a bracket that could flatten Dan’s leg during the process. A lever-controlled solenoid was also added to lift the tattoo machine off the skin in case of an emergency, ensuring safety during the procedure.
After a few more material tests, Dan bravely volunteered to be the test subject. He strapped the tattoo-3D printer hybrid to his thigh, and the machine began inking his skin. While Dan reported that the sensation wasn’t particularly painful, the final result was a tattoo that, although not flawless, was a successful first attempt.
Emily’s tattoo machine may not be the sleek, futuristic model envisioned by some, but it is certainly a unique achievement in the world of DIY engineering. Though the end result may not compete with professional artistry, it demonstrates the potential of 3D printing technology in unconventional fields. As for Dan, he now sports a permanent reminder on his thigh, and while the tattoo may not be perfect, it’s a bold testament to his willingness to volunteer for a groundbreaking experiment.
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