Homemade Hardness Tester
TOOL:
PLANS:
None. For all tools with plans, click here.
BUILDER:
tonyfoale on homemadetools.net
DESCRIPTION:
Homemade hardness tester constructed from tubing, bar stock, infrared LEDs and transistors, resistors, switches, an LM393 comparator, and an Arduino. The device uses principles derived from Shore and Leeb hardness testers.
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LEVEL OF DETAIL (1-5):
5
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