DIY 3.5" Floppy Disk: A Remarkable Feat of Engineering

Polymatt, a maker extraordinaire, successfully built a 3.5" floppy disk from scratch. The challenge wasn't just creating the casing, but replicating the incredibly thin magnetic media inside, requiring specialized PET film and chemicals. The project also involved building a custom drag knife for his CNC machine, a tool normally costing over $150. This DIY endeavor is a testament to ingenuity and persistence.
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