45.136 Bi-Fold 3 BCA

  • Hamer| John;Per;
  • L/W=1
  • H/W=0.585
  • Vol/W^3=0.206
  • 29+12 Facets
  • Gear: 96
  • Remarks: Below the critical angle
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 <96> W W T T L L U U C C P P a b c d e T b d 1 g 2 3 4 1 2 3 a c a b c d e T b d 1 g 2 3 4 1 2 3 a c PC 45.136 Bi-Fold 3. BCA Designed by J Hamer. June 2014. Copyright assigned to the public domain. Angles for R.I. = 1.540 29 facets + 12 girdles 2-fold symmetry; 96 index L/W = 1.000 T/W = 0.330 U/W = 0.298 P/W = 0.411 C/W = 0.163 Vol/W³ = 0.206 pc45136.asc
143.72°08-24-56-72Cut to center
g90.00°96-08-16-24-32-40-48-56-64-72-80-88Size stone
239.42°16-64Meet g, g. Level girdle
350.90°96-32-40-48-80-88Meet g. Level girdle
423.77°40-88Meet 3, 1 and centerpoint
a24.87°08-24-56-72Establish girdle
b21.80°16-64Level girdle
c41.19°96-32-48-80Level girdle
d39.51°40-88Level girdle
e15.07°40-88Meet c, a
T0.00°TableMeet a, b

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