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Author Topic: Concave Cutter  (Read 1579 times)

FlashGP

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Re: Concave Cutter
« Reply #45 on: June 22, 2020, 10:44:04 PM »
Hi Guys,

If you are interested I started a Facebook group called Concave and Fantasy Faceting Design.

My intent is to foster discussion among a wider group than is available on ALF.  Members of the half a dozen facebook groups I am a member of are granted automatic membership if they apply to join.

Regards
Flash
Yours Sincerely
Flash (Gordon)

Faceting Frank

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Re: Concave Cutter
« Reply #46 on: June 24, 2020, 08:54:09 AM »
I would be interested in joining when I get into it. Got my geared motor attached the pushrod assembly will operate off, but stopped work at the moment because of the stone I have on the machine.
It’s “Barion Heart – Transplant” for the US comp. They have made the stone a specified size and I’m finding you cant cut the stone accurately with the current cutting sequence. Because nearly every facet on the pavilion is cut including all the breaks, before the girdle is started. A typical meet point cutting sequence, which if you want the stone to be within 0.1mm and the meets flawless under a 10x loupe at the girdle doesn’t work.
So well into the pavilion with my own cutting sequence which is going well, will concentrate on finishing it before getting back to the concave cutter.
Going to enter stones in the Gemboree 2021, there is a concave stone in that comp.

FlashGP

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Re: Concave Cutter
« Reply #47 on: June 25, 2020, 11:39:47 PM »
Hi Frank,

Great to hear.  I am also planning on entering the 2021 Gemboree.  It'll be good to have a concave section with more than 2 entries.

Would ypu mind if I posted your photo above on the new website.  A few members of Faceting Technical have mentioned they are interested in getting a machine so I thought it might inspire them to see 2 or 3 different ideas.  I am also going to ask Makky  because we each have approached the design from a different angle.

Regards
Gordon
Yours Sincerely
Flash (Gordon)

Faceting Frank

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Re: Concave Cutter
« Reply #48 on: June 26, 2020, 07:26:45 AM »
No problem, when I get it finished and the bugs out of it, I’m going to post detailed info on how to make one.

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