This $4,000 Open Source High-Speed Atomic Force Microscope Is a Nanoscale Imaging Marvel - Hackster.io

"A team of scientists from the National Taiwan University, the Technical Universities of Denmark and Munich, and the Physikalisch-Technische Bundesanstalt has built an open source design for a nanoscale imaging high-speed atomic force microscope (HS-AFM) — buildable for under $4,000. The version built by Hwu and colleagues comes in at $3,936 in parts. Better yet, it is released under an open-hardware license for all to replicate...."