PC 04.330

StarStep 1.20, Alt. Crown

by Alexandre Wolkonsky and J.C. Finlayson
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DataVueopen
L/W
120%
Design RI
1.63
H/W
78%
Gear
96
V/W³
0.429
Symmetry
2 (mirrored)
Facets
77
Tiers
24
Crown
8
Pavilion
69

April 2014 See other L/W variants Personal communication to RWS from AW, 2016

Cut step 1 to length, step 2 to width. Then cut two 3 facets to make diagonal dimension 1.339 measured flat-to-flat. If using optional CAM preform, cut CAM step PF3 first to TCP. Then PF1 and PF2 to TCP.

Wireframe

StarStep 1.20, Alt. Crown 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
2472
CAM 30.17
G290.00°
4896
CAM 34.90
G390.00°
12366084
D/W=1.369 CAM 27.00
P168.00°
4896
P265.00°
2472
P351.50°
 2465094
P450.00°
12366084
P546.50°
22267074
P645.83°
 6425490
P743.10°
18306678
P842.81°
10385886
P942.00°
14346282
P1029.08°
4896
below critical angle...
P1128.70°
2472
...to make windowed star

Crown

#AngleFacetsNotes
C165.00°
12366084
C240.00°
4896
C340.00°
2472
C430.00°
 1474995
C530.00°
23257173
C624.00°
22267074
C723.50°
 2465094
C820.40°
21276975
C919.00°
 3455193
T0.00°
96