Unfold part of SPHERE
     The spherical surface is not-unfolding without deformation.
          The spherical surface can be considered as planar, cylindrical or conical in  small area.
          (When applying the unfolding on the spherical surface, the deformations will be small)

  Sketch of the dimensions

 

      
R =   mm.
H1 =   mm.
H2 =   mm.
    ãðàäóñà
  

  Accuracy :
 n =


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