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Homemade Brinell Hardness Tester


BUILDER:
mtngun on mountainmolds.com
DESCRIPTION:
Homemade Brinell hardness tester intended specifically for bullets. Fashioned from a 44 Magnum crimp die, ball bearing, and indenters.
RATING:
(2)
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May 26, 2017 5:58 AM
Toolmaker51
Read nearly all your post. The USB camera utilization is great. Essentially a Toolmakers Microscope. Use of bearings produces better indent from higher surface finish . You'll gain accuracy if surface to measure and scale are on same plane of Z axis. Surface supporting BHN tester is best if hard enough to not impart deflection which 'deadens' pressure applied.
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4


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DIY Brinell Hardness Tester - comment on how to build a Brinell Hardness Tester - 1 comments
Toolmaker51 says:
May 26, 2017 5:58 AM
Read nearly all your post. The USB camera utilization is great. Essentially a Toolmakers Microscope. Use of bearings produces better indent from higher surface finish . You'll gain accuracy if surface to measure and scale are on same plane of Z axis. Surface supporting BHN tester is best if hard enough to not impart deflection which 'deadens' pressure applied.

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