(19) ANGLE DOP (45 Deg Dop) (Fig 10)
The angle dop is inserted in the Dop Arm, located and locked as above. The dop holding the Gemstone is inserted
in this Dop and locked with the Grub Screw. This arrangement is used to cut the table on the stone.
Fig 10
(20) CHECKING ANGLE DOP SETTING
The 45
0
Angle Dop is inserted in the Dop Arm as described above. The large Flat Top Dop is locked in the Angle
Dop. The Angle is set at 45.0
0
and clamped. Set the Index Pawl pin in the 96 tooth of the Index Wheel and zero the
Index Cheater. The head is then lowered until the Flat Top Dop sits flat on the master plate. If not, adjust the Angle
setting and the Index Cheater. However after cutting and polishing the Table of the Gemstone, the Index Cheater
must be returned to the zero setting before continuing to cut any of the Facets.
(21) TRANSFER BLOCK. (Fig. 11)
This has a “V” grove for holding the dops. Two brass “D” shaped plates clamp the dops. In operation one dop is
placed in the groove. The brass plate is slid forward over it and clamped. The other dop is inserted in the same way
and the plate tightened.
Fig 11
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