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Gemstones, Minerals & Fossils
Lapidary
Building An Automatic Faceting Machine CNC
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<blockquote data-quote="Lefty" data-source="post: 269304" data-attributes="member: 2976"><p>Hi Christian.</p><p></p><p>I'm not sure how much faceting experience you have but I'm with Kingsolomon here - I think you really want to get the feel for operating a faceting machine before trying to build one. Probably a bit like putting the cart before the horse otherwise. Natural stones in particular can have their own little idiosyncracies and you really want to develop a feel for how a variety of different things behave on cutting and polishing laps.</p><p></p><p>I don't claim to be a guru or anything, far from it. But the experience I have had so far allowed me to rescue a stone the other week. It had somehow shifted on the dop in all three dimensions, right near the end of polishing the pavilion, much worse than it seemed at the time - rotated on it's axis, slid along the dop end and tilted over a bit at the top. When I was first starting, that situation would have been hopeless and I would have needed to have re-cut all over. But because I had enough experience with what this design was supposed to look like, I was able to build a crown by eye until everything matched neatly and aligned perfectly with the pavilion. There's probably better ways to do it but it was only experience that got me out of trouble there.</p><p></p><p>Spend some time learning to use a faceting machine first if you haven't already <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="Lefty, post: 269304, member: 2976"] Hi Christian. I'm not sure how much faceting experience you have but I'm with Kingsolomon here - I think you really want to get the feel for operating a faceting machine before trying to build one. Probably a bit like putting the cart before the horse otherwise. Natural stones in particular can have their own little idiosyncracies and you really want to develop a feel for how a variety of different things behave on cutting and polishing laps. I don't claim to be a guru or anything, far from it. But the experience I have had so far allowed me to rescue a stone the other week. It had somehow shifted on the dop in all three dimensions, right near the end of polishing the pavilion, much worse than it seemed at the time - rotated on it's axis, slid along the dop end and tilted over a bit at the top. When I was first starting, that situation would have been hopeless and I would have needed to have re-cut all over. But because I had enough experience with what this design was supposed to look like, I was able to build a crown by eye until everything matched neatly and aligned perfectly with the pavilion. There's probably better ways to do it but it was only experience that got me out of trouble there. Spend some time learning to use a faceting machine first if you haven't already :) Cheers [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Building An Automatic Faceting Machine CNC
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