17.038 Round Rectangle BCA

  • Hamer| John;Personal communication 2017;
  • L/W=1.414
  • H/W=0.78
  • Vol/W^3=0.451
  • 55+10 Facets
  • Gear: 96
  • Remarks: BCA=Below the Critical Angle
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 <96> W W U U L L T T C C P P a b c d e t a c 1 g1 g2 2 3 1 2 3 a b c d a b c d e t a c 1 g1 g2 2 3 1 2 3 a b c d PC 17.038 Round Rectangle. BCA. Designed by J Hamer. March 2010. Copyright assigned to the public domain. Angles for R.I. = 1.540 55 facets + 10 girdles 8-fold, mirror-image symmetry; 96 index L/W = 1.414 T/W = 0.292 U/W = 0.292 P/W = 0.543 C/W = 0.211 Vol/W³ = 0.451 pc17038.asc
138.96°09-15-21-27-33-39-57-63-69-75-81-87Cut to centerpoint
g190.00°15-21-27-33-63-69-75-81Size stone
g290.00°96-48Meet 1, g1
266.51°96-48Level girdle
337.50°12-24-36-60-72-84Meet g2, 1, g1
a30.65°15-21-27-33-63-69-75-81Level girdle
b66.73°96-48Level girdle
c26.50°96-12-24-36-48-60-72-84Meet b, g2, g1, a
d15.81°06-18-30-42-54-66-78-90Meet b, c
e10.20°96-12-24-36-48-60-72-84Meet d, c
t0.00°TableJudgfe by eye

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