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Faceting
After browsing the web for an hour, I think I understand how gems are
faceted but not clear on how one gets from there to polished facets. Is the process just repeated with finer grits or am I missing something? js |
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#2
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Although the machinery and some of the process is different for diamond=20
than the colored stones. In general, the rough or preform is affixed=20 (wax,epoxy,superglue or, for diamond, a clamp) to a rod which is=20 inserted in a quill which, for most hobby faceters, is part of a head=20 which can accurately and repeatably be set for angle, rotation, and=20 height. Much overseas cutting is done with less emphasis on=20 repeatability and more work by eye/feel. using usually diamond grits=20 from 220/320 progressing through one or 2 intermediate grits to perhaps=20 50k or finer diamond OR some oxide polishes like cerium, tin whatever. It can be a rewarding hobby and, if purchasing used equipment is=20 affordable. One can participate at several levels, cutting=20 glass/synthetics for fun, make Xmas gifts, cut stones for trade, sale or=20 collectors, set your own stones after learning metasmithing, design=20 original cuts, up to international competition. If you have a=20 Gem&Mineral/Rockhound club in you area, most likely you could find an=20 instructor. check www.gemsociety.org http://www.faceters.com/ http://www.gemcutters.org http://www.rockhounds.com/ http://www.gearloose.com/ Carl 1 Lucky Texan Jack Schmidling wrote: After browsing the web for an hour, I think I understand how gems are faceted but not clear on how one gets from there to polished facets. =20 Is the process just repeated with finer grits or am I missing something? =20 js --=20 to reply, change ( .not) to ( .net) |
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