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I want to measure the sharpness of a razor blade, for reasons. I have two ideas so far:
Neither of these ideas are great. #1 is bad because it would be hard to use for comparing different blades. I would need to apply the exact same amount of force, in the exact same increments, and keep blade/thread at the same angle. It's not a realistic experiment without precision machining. Meanwhile, the printer idea although easy to setup for consistency, does not provide a numeric outcome.
So ... I am wondering if any of you actual engineer/science people have thoughts on this.
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