1.701 Butterfly Table Opt

  • Hamer| John;Personal communication;
  • L/W=1
  • H/W=0.608
  • Vol/W^3=0.191
  • 87+16 Facets
  • Gear: 96
  • Remarks: for dark materials
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 <96> L L W W C C P P a a b b c d e f h i k m n o p r a 1 g 2 1 2 a a a b b c d e f h i k m n o p r a 1 g 2 1 2 a PC 01.701 Butterfly Table. OPT. Designed by J Hamer. December 2014. Copyright assigned to the public domain. Angles for R.I. = 1.540 87 facets + 16 girdles 1-fold, mirror-image symmetry; 96 index L/W = 1.000 P/W = 0.434 C/W = 0.156 Vol/W³ = 0.191 pc01701.asc
142.00°96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90Cut to centerpoint
g90.00°96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90Size stone
240.40°09-21-27-39-57-69-75-87Meet 1, g
a35.00°96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90Cut to centerpoint
b12.00°96-04-08-12-16-20-24-28-32-36-40-44-48-52-56-60-64-68-72-76-80-84-88-92Determine wingspan. Polish all crown facets
c14.50°35-61Meet b, a. Leave remaining facets frosted
d14.50°40-56Meet b, c
e14.50°43-53Meet b, d
f14.50°48Cut by eye
h14.50°26-70Meet b, c, a
i14.50°23-73Meet b, h
n14.50°13-16-19-77-80-83Meet b, i
o14.50°08-88Meet b, n
p13.30°01-95Meet b, o
r13.30°18-78Meet b, i, k

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