Micro indentation tester


Image analysis stuff
PUMA Microscope - https://hackaday.com/2021/09/09/highly-configurable-open-source-microscope-cooked-up-in-freecad/
https://www.sciencedirect.com/science/article/pii/S246806722300007X
Make the damn thing an inverted microscope, for god's sake. I'm so done with irregular samples
https://hackaday.com/2021/04/26/3d-printed-laser-scanning-confocal-microscope-measures-microns/
https://hackaday.com/2020/05/05/lego-microscope-does-research/
Stereo microscope??
https://hackaday.com/2024/04/09/adjustable-lights-help-peer-inside-chips-with-ir/
openflexure but bigger - https://hackaday.com/2024/03/10/%ce%bcreprap-taking-reprap-down-to-micrometer-level-manufacturing/
Electron microscope youtube to watch - https://hackaday.com/2019/02/18/electron-microscopes-are-awesome-everything-you-didnt-know-you-wanted-to-know/

TL;DR a Loadcell for the force and a displacement sensor for the displacement






DIY Hardness testing using a bouncing ball bearing by Tony Foale (Motochassis)
https://www.youtube.com/watch?v=oxT8Uqq88xM
https://www.youtube.com/watch?v=4ghW9RNKiDA
https://s3-us-west-1.amazonaws.com/hmt-forum/tony_foale_hardness_tester.pdf





Michel-Uphoff
https://www.youtube.com/watch?v=CHMexzeWQD8
https://www.youtube.com/watch?v=mtxRkP5UavY
https://www.youtube.com/watch?v=ZBGS0ZLZPTY


Accurate precision level
https://www.youtube.com/watch?v=8F6tnOIg0FA
https://www.youtube.com/watch?v=dhGLn6MObcE


General Infi
https://xometry.pro/en/articles/hardness-testing-of-metals/





LitReview
https://www.technoarete.org/common_abstract/pdf/IJERCSE/v4/i2/2.pdf
https://www.mdpi.com/2073-4352/7/10/258