PC 08.167

Checkerboard AC 1.05

by Alexandre Wolkonsky
Save to collection
No ratings yet
DataVueopen
L/W
105%
Design RI
1.54
H/W
80%
Gear
96
V/W³
0.344
Symmetry
2 (mirrored)
Facets
80
Tiers
20
Crown
16
Pavilion
64

from GemCad by Jim Finlayson OMNI sequence by Robert H. Long

* Angles modified from Finlayson's original GemCad. Because of the apex crown, you can lower the pavilion angle from 42 to 39 degrees without windowing.

Wireframe

Checkerboard AC 1.05 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
 1474995
Set Size
G290.00°
 3455193
Meet 2-3-G1
G390.00°
21276975
Meet 1-3-G2
G490.00°
23257173
Meet 1-1-G3
P161.08°
 1474995
P260.91°
23257173
P360.00°
 3455193
Meet 1-3-G2-G3 *
P460.00°
21276975
Meet 1-3-G2 *
P543.07°
 3455193
"
P642.35°
 9395787
" *
P742.14°
21276975
Cut to PCP
P842.00°
15336381
Cut to PCP

Crown

#AngleFacetsNotes
C160.40°
 3455193
Level Girdle
C260.00°
 1474995
Set Girdle thickness
C359.70°
21276975
"
C459.26°
23257173
"
C525.52°
12366084
Meet at corner
C619.60°
 5435391
Meet a-b-e *
C719.60°
19296777
Meet c-d-e *
C89.12°
12366084
Meet e-f-g