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Beginners Guide to Grinding, Sanding and Polishing Gemstone Cabochons

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Author Topic: Beginners Guide to Grinding, Sanding and Polishing Gemstone Cabochons  (Read 23961 times)
lithicbeads
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« Reply #15 on: September 05, 2013, 03:01:34 pm »

 Realistically no flat that has been polished is really flat . Even in faceting relatively small facets the edges are still abraded more than the center. It only becomes a problem ( the problem is called rounding the facets) when it exceeds your tolerance for the degree of rounding . For any normal sized intarsia  sic belts between the stone and the machines platen ( the rest ) will produce a non- perceptible rounded or domed top. This is easily done on an expando with care . This can be done with diamond also but sic is vastly faster in most applications , particularly the pre polish.
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MessofRocks
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« Reply #16 on: September 24, 2013, 01:32:49 am »

Great info for sure because that is what I need most (visual) to learn and here is a great link on how to make cabs.
The printable PDF is at the bottom.

http://www.inlandlapidary.com/user_area/howtocab.asp

That was strange because I always preview and it was there, anyhow here is the update. The printable or downloadable version all the way at the bottom right-hand side.
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kennyg
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« Reply #17 on: September 24, 2013, 09:24:16 am »

no link try again
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MessofRocks
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« Reply #18 on: September 24, 2013, 10:17:46 pm »

no link try again


This is the hot link right to the PDF if you want to skip the site or webpage.

http://www.inlandlapidary.com/user_area/howtocab.pdf
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kayjay
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« Reply #19 on: September 29, 2014, 03:17:51 am »

I am trying to view the videos but they are no longer available. Any chance of reloading them or making them available in some other wayj? Thanks.
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mrlnavy
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« Reply #20 on: November 27, 2015, 11:46:37 pm »

Great tutorial I definitely needed it.  Much appreciated.
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Mike Longoria Sr
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« Reply #21 on: December 16, 2015, 07:50:14 pm »

Thank you thank you thank you
This tutorial is gold
I'm new and I keep referring to it
And will for long time I'm sure
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