PC 07.173

Four by Four. BCA.

Designed by J Hamer. July 2014.
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DataVueopen
L/W
100%
Design RI
1.54
H/W
72%
Gear
96
V/W³
0.334
Symmetry
4
Facets
48
Tiers
7
Crown
8
Pavilion
40

Copyright assigned to the public domain.

BCA=Below the Critical Angle

Wireframe

Four by Four. BCA. 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
24487296
Size stone
G290.00°
12366084
Cut by eye
P139.90°
 6121824303642485460667278849096
Cut to centerpoint
P238.40°
 915333957638187
Meet 1, 1

Crown

#AngleFacetsNotes
C124.36°
12366084
Establish girdle
C218.79°
 519294353677791
Cut to equal width as a
C39.10°
12366084
Meet a, b