Retroreflection and Gemstone Brilliance
How is a faceted gem like a retroreflecting prism? Learn to distinguish gemstone brilliance from scintillation and how gem cutters choose pavilion…
Articles by
Jon Rolfe
How to Make a Digital Readout for Your Faceting Machine
A Digital Panel Meter (DPM) can measure angles to 0.01 degree if a precision instrument potentiometer is used and a stable reference voltage is…
Retrofitting The Lee Faceter for a Digital Readout
Retrofitting The Lee Faceter for a Digital Readout. This is the second in a series of articles on how to convert your faceting machine to a digital…
Retrofitting The Graves Faceter for a Digital Readout
Retrofitting The Graves Faceter for a Digital Readout. Being a more “finished” unit, there is less flexibility for field modification. More information…
Retrofitting The MDR Faceter for a Digital Readout
This will be a challenge because the MDR machine uses adjustable needle bearings on the trunnion assembly.Retrofitting The MDR Faceter for a Digital…
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