Faceting machine

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A faceting machine is broadly defined as any device that allows the user to place and polish facets onto a mineral specimen. Machines can range in sophistication from primitive jamb-peg machines to highly refined, and highly expensive, commercially available machines. A major division among machines is found between those that facet diamonds and those that do not. Specialized equipment is required for diamond faceting , and faceting as an occupation rarely bridges the gap between diamond and non-diamond workmanship. The vast majority of jewelry -store gemstones are faceted either abroad in factories or entirely by machines.

Faceting machine

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First the rough stone is glued to the end of the dop. Among the more common names are Ultra-Tec, Facetron, Graves and Poly-Metric, faceting machine, although there are many competing brands.

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The Facetron. All faceters know that the precision of their facets is directly linked to the precision of the index gear. The Facetron comes equipped with the 96 index gear, but you can choose the index gear you want. After you dial in the desired angle on the digital protractor of the Facetron, the Dial Indicator Stop System shows you the exact stopping point. The dial indicator stop system consists of a new hard stop and dial indicator for dependable and accurate depth of cuts. You have three options. You can use dial indicator as dial stop only, hard stop only or both.

Faceting machine

The GemMaster. These features are designed to make the machine the easiest and most accurate faceting machine available while slashing the required time. As the first facet in a series is cut to the desired angle and depth, the needle moves up the meter scale. When the facet is completed and the grinding stops, the position of the needle on the meter is noted. As each subsequent facet in a series is cut, an audible tone denotes the identical needle position on the meter. Upon hearing this tone, you know to move on to the next facet. When using this method, upon completion not only are all your facets identical but your time involved is cut dramatically!

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The basic shape of the pavilion has now been created. Follow on Instagram. Index Wheel : If you view a gemstone from the top, you will see it has some type of symmetry. All orders will be processed in the order they are received and confirmed, and as always we greatly appreciate your business. Download as PDF Printable version. Notice Due to the high volume of orders we are receiving, we are experiencing delays in our production. A major division among machines is found between those that facet diamonds and those that do not. This is so that, when the angles for facets are chosen, they are placed at the correct angle. Luckily, diamond's hardness is slightly different along different crystal axes. For example, the index wheel may have 64 teeth. Many machines allow the head to be untightened from the mast and slid up and down for gross adjustments, and then have a separate mechanism for making fine adjustments up and down. Category : Gemstone cutting. The index is set to 64, which is the same as 0. The head can then be lowered by a micro-adjustment and the facet can be cut and re-cut until it is of a desired depth. The quill is again lowered and a second facet is ground to 45 degrees.

Ultra Tec faceting instruments support both hard and soft stop cutting. The analog versions have a big, easy-to-read classic analog dial, with high precision vernier and solid repeatability. The Ultra Tec machines are famous for their super-rigid mast system and rock-solid hard stop.

The quill is carefully lowered to the lap and contact is made. The quill is the part of the machine that is held in the hand during faceting. The quill is again lowered and a second facet is ground to 45 degrees. Toggle limited content width. These are described below:. Load More See all results. As stated above, the mast assembly is what makes a faceting machine a faceting machine. The mineral in this example is quartz, so the first angle will be 45 degrees. Custom jewelry is still commonly made of custom metalwork and mass-produced gemstones, but unusual cuts or particularly valuable gemstone material will likely be faceted on a personal faceting machine. Return to shop.