Nothing is more important than accurate alignment of polishing equipment to achieve the so sought-after Triple Excellent diamond cut qualification. Perfect proportions, symmetry and polish are non-negotiable when selling a diamond at the best price. But to achieve this level of perfection, the diamond polisher needs to rely on his equipment. An accurate setting of the polishing tang and bench is crucial to obtain the highest level of accuracy.

Up until now, diamond polishers commonly use levels to align tang plates and tangs. A perfect alignment of the polishers’ equipment takes hours and tons of experience. Today, HRD Antwerp offers a new solution: Morgana. Morgana is a complete set of tools that helps the diamond polisher to align his polishing equipment.

How Morgana helps the polisher:

Principle

The innovative Morgana technology is based on the reflection of a light beam on a surface. Its high-tech system uses a set of cameras, light beams and calibration parts. The camera generates a light beam, which is reflected by a flat surface (this can be a facet, a mirror, a piece of polished metal or a piece of glass, etc.). This reflection is shown as a point on the screen and its relative position represents very accurate the relative angle of the reflective surface (0,01 °). On top of the tang a mirror is mounted, as reflective surface, to replace the level. This tang mirror will be aligned perpendicularly to the grain axis of the tang.

Features

Different sets and applications

Basic unit
Morgana’s basic unit is a set for tang-calibration, consisting of:

Tangplate alignment set

The tang plate alignment set is a set of tools that will help the polisher to bring the tang plate on the same waterlevel and in the same plane as the polishing wheel (the scaife). It is additional to the basic unit, which requires perfect alignment of the tang plate.

What can it do?

Online check of grain-axis alignment (while polishing)

For this application, the camera is set in a holder on the bench above the polisher’s tang, which needs to be equipped with a tang mirror. Every time the tang mirror is passing under the camera, the polisher can check the inclination of the grain-axis and adjust if necessary. When the inclination is ‘nil’, this means the desired facet angle is achieved.

Additional accessories are available to: