300,000-500,000 USD vs 3,000-4,000 USD. A high-end AFM next to a DIY one built on a DVD pickup. Not a replacement, but nanoscale imaging for classrooms and small labs. Open access review in JJAP: t.co/htOhOAZlGd #HardwareHacking #AFM t.co/e3iESRgkjf

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