Hardness testers are expensive devices. A hobby instrument maker quickly has to fall back on files to get an impression of the hardness of his materials. But is it really not possible to build an affordable, reliable, precise test machine yourself that covers the entire Rockwell and Vickers hardness range?
I think it can be done.
Music: Bach, Mozart, Grieg, Beethoven. By Kevin MacLeod and John Lewis Grand.
Links:
The optical glass microscope calibration tool: nl.aliexpress....
The scale I wrecked (with pleasure): nl.aliexpress....
The diamond indenter: nl.aliexpress....
21 авг 2024