Ronnie Posted March 4, 2010 Share Posted March 4, 2010 Hello all I thought this Hardness Gauge would be an interesting project. http://www.rayrogers.com/rhc_plans.htm Quote Link to comment Share on other sites More sharing options...
pkrankow Posted March 4, 2010 Share Posted March 4, 2010 you could also buy a penetrator, and an inexpensive student microscope that has measuring capability, or even a better toy microscope and really get old school by measuring the diameter of the mark. All you need to fabricate is a means to apply the specified load in a straight line. Phil Quote Link to comment Share on other sites More sharing options...
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