PC 16.033

Straight-Sided Triangle, Step Crown

Robert H. Long, May 26, 2013
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DataVueopen
L/W
115%
Design RI
1.54
H/W
65%
Gear
96
V/W³
0.211
Symmetry
3 (mirrored)
Facets
34
Tiers
12
Crown
6
Pavilion
28

Facets, Feb 2014 p9

Note: C1 facets are locator facets cut at 32-64-96. These are cut off by step C4, same index settings. Work assigned to the public domain

Wireframe

Straight-Sided Triangle, Step Crown 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
164880
Establish Size
G290.00°
326496
Meet P1,P3
P170.00°
164880
Optional level girdle
P252.00°
151747497981
TCP
P348.00°
164880
Meet P1 at girdle
P445.00°
326496
Meet P1,P2

Crown

#AngleFacetsNotes
C147.00°
96
Set girdle thickness (See note)
C240.00°
164880
Level Girdle
C335.00°
164880
Meet C1, C2
C430.50°
3264
Level girdle. Recut step 1 facets
C525.00°
164880
Meet C3,C4
T0.00°
96
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