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Razor blade sharpener 2

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This video is a guess for inside mechanism of the sharpener shown at The razor blade is clamped between two blue jaws by a screw. Pink face cam is for raising the blade. Pink face gear is for flipping the blade. In every three revolutions of the crank, two revolutions are for grinding one side of the blade, one revolution is for its flipping. Transmission ratio between grinding disk and the pink shaft is 3. Blue spring forces the blade on the grinding disk. STEP files of this video: Inventor files:

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