Thingiverse
Spherometer
par Mjasnik
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A Spherometer is designed to determine the arrow of curvature of an astronomical mirror. And as a result - its focal length. Formula for calculating the focal length: F=D²/16x².
Where "D" is the working diameter of the device - 127 mm. And "X" is the measured value in mm.
Where "D" is the working diameter of the device - 127 mm. And "X" is the measured value in mm.
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