Thanks for everyone's input... I understand the that the curving of the blade increases rigidity but the internal of the cap could still allow this even if the outer is more angular... I am just interested at why the razor casing shape doesn't reflect the correct cutting angle for the user... I don't know if that makes sense to you...
That Mikron is kind of what I mean... that angular plane looks like when you run your skin against that surface... the blade angle is at the correct 30 degree angle to the skin.
Thanks again.
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Bearing in mind it only cuts perfectly close at one angle...
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the blade angle is at the correct 30 degree angle to the skin.
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I think the blade may stick out more than that, at least in some razors, so that you have a few degrees of movement to play with where the guard or cap helps change the pressure that the blade applies while still allowing the blade to touch.