Arrow by Jack Rowland

Arrow
Design Copyright 11/08/94 by Jack Rowland
Angles for R.I. = 1.5443 facets + 9 facets on girdle = 52
3-fold, mirror-image symmetry96 index
L/W = 1.050 T/W = 0.531 T/L = 0.506P/W = 0.414 C/W = 0.124
H/W = (P+C)/W+0.02 = 0.559P/H = 0.741 C/H = 0.223
Vol./W^3 = 0.164
Pavilion
a47.0004-28-36-60-68-92Cut to TCP with b', see footnote
90.0004-28-36-60-68-92Cut girdle to proper shape
90.0096-32-64and level girdle
c45.0003-29-35-61-67-93Cut to girdle meets
d42.5004-28-36-60-68-92Cut to c-a meets & center point
b'47.6096-32-64Cut to c-d and girdle meets
Crown
a40.0096-32-64Leave some girdle
b39.0004-28-36-60-68-92Level girdle
c36.0002-30-34-62-66-94Cut to girdle meets
d00.00TableCut Table to A-C meets
e26.1006-26-38-58-70-90Cut to a-c-d and girdle meets
b' meets facet a at the temporary center point and is first cut at 49.4 degrees. This allows the girdle facets to be cut to the proper shape. b' is then recut at the end to final meet points.


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