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Lapidary / Gemstone Community Forum
April 19, 2019, 06:31:51 pm
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Shaping and beveling very low domed cabochon

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Author Topic: Shaping and beveling very low domed cabochon  (Read 7453 times)
Taogem
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« Reply #15 on: January 22, 2010, 05:26:36 pm »

Polly is the brand..

The rubber that makes up these expando drums (below) is what allows for a little give when pressing against the belts.

If you go with these, you will want to go with the standard 3" x 8" ..

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christopherl1234
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« Reply #16 on: January 22, 2010, 06:39:50 pm »

I have a Genie and a Pixie and the Nova wheels on my Genie have very little give but the Novas on my Pixie flex and comform to my stone quite well. I perfer cutting opals and softer materials on my Pixie because of this  and also because my Pixie runs slower even though the wheels are smaller.
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hulagrub
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« Reply #17 on: January 22, 2010, 06:54:55 pm »

Thanks George. Part of what I have been considering, is that I can get a pad that fits, our 8" Ameritool flat lap. Would have to get more plates and disks. Will probably talk to the owner, if he is in Kansas City, this March. And like Christopher, I like a slower speed for some stones.
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« Reply #18 on: August 15, 2010, 05:26:48 pm »

Thanks for all this good information!  Wish I had found it months ago but it's good to know that I have already learned some of what you are showing here.  Trial & error, just doing it, work great every time!
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annege
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« Reply #19 on: July 22, 2011, 07:21:21 pm »

Love the videos George - they were really helpful to me yesterday trying to figure out how to best hold the stone for a low dome. I love setting low-dome cabs so they're what I'll primarily be trying to cut!
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Taogem
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« Reply #20 on: July 22, 2011, 08:14:15 pm »

Love the videos George - they were really helpful to me yesterday trying to figure out how to best hold the stone for a low dome. I love setting low-dome cabs so they're what I'll primarily be trying to cut!

Excellent !

Let us know how you make out... !
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Eu_citzen
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« Reply #21 on: January 16, 2013, 12:06:35 pm »

Nice demo, I would like to hear your views on this.
I see that the edges are not rounded on this cabb on the demo.
I.e. there is a sharp corner between the bevel and the flat-top.

Don't you think it would be better to round of that as during wearing it may wear faster then the rest of the cabb? I'd like to think so. dunno
(depends on what kind of jewellery/setting etc, I know just thinking out loud)

Click on the thumbnail for a larger view, below is how I like to do my flat-top cabbs.
I do the approx same sequence just round of that bevel somewhat.



Just a thought.
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anthonyroman
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« Reply #22 on: May 05, 2014, 12:06:45 pm »

I like the first one. Its simple, unique and elegant! The pattern looks like a tree in autumn which is really cool. Great work!
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