I think its really suited to small stones and defiantly nothing of any great value? the stone needs to be able to stand the heat of casting, diamonds or cz's that type of thing. Im sure I read somewhere that 1.5mm is as big as you should go due to thermal expansion etc but I cant really remember but I would do a bit of research to find out . Also remember not to dunk the flask after casting !!!
https://envisiontec.com/wp-content/u...onesetting.pdf
this outlines the procedure for 3d printing.
And lots of info here
http://www.jettresearch.com/sites/de...ace%202001.pdf
Maybe you could carve the wax up then warm the rough stone and let it melt into the model then remove it and build up the claws etc in wax but open then to make a setting, have it cast ,polish it ,then reset the stone ? it would be a safer option if you used the blue wax its a bit more flexible to get the stone out.
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