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Post by bobby1 on Jan 2, 2023 22:15:14 GMT -5
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Post by jasoninsd on Jan 2, 2023 22:20:32 GMT -5
Amazing Bob!
I've been wondering...and I never ran across it in any of your old threads I've gone through...what equipment are you using to grind and polish your enormous cabs?
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quartzilla
Cave Dweller 
Member since April 2020
Posts: 1,240
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Post by quartzilla on Jan 3, 2023 3:38:46 GMT -5
Wow that is amazing! Imaging a xmas tree covered with agate ornaments. That’s what this reminds me of. Great shape and composition!
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Post by bobby1 on Jan 3, 2023 3:44:15 GMT -5
I use a homemade lapidary unit that has an 8" expando sanding wheel and two diamond grinding wheels. One wheel is a 2" wide 100 grit wheel and the other one is 1-1/2 wide well used 100 grit wheel. When I made the unit I spaced the wheels widely apart and lifted up so I can work under the wheels easier. A Geni and other commercial machines have the wheels far too close together to make large cabs.  |
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Post by bobby1 on Jan 3, 2023 3:47:39 GMT -5
I polish with a 12" slow turning carpet covered wheel using cerium oxide.  |
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Post by fernwood on Jan 3, 2023 7:24:42 GMT -5
That is a very cool cab. Reminds me of some vintage/antique tree ornaments I have.
Love your set up for cabbing.
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Post by jasoninsd on Jan 3, 2023 17:19:02 GMT -5
bobby1 - Thank you for posting those pictures. I kept trying to wrap my head around how you could be doing it...and couldn't come up with anything other than an Expando wheel. The spaced grinding wheels were a great idea! I have a 6" Kingsley North Cabber...which has the wheels spaced further apart than any other "stock" machine. This would enable me to make cabs larger than most...but nothing compared to your monsters.
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khara
fully equipped rock polisher
Member since September 2022
Posts: 1,980
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Post by khara on Jan 23, 2023 23:37:11 GMT -5
So your entire cabbing process is a new(ish) 100 grit wheel, an old 100 grit, an expando wheel, and a carpet cerium oxide? Just 3 wheels and then polish? Or does the expando wheel get changed out with multiple grits? What grit is on that?
My husband talks of watching his grandpa polish on a front facing, I’m thinking likely carpet, polishing wheel like yours.
Not knowing really where to start, or how to start from scratch, or anything about machines, I also just bought a modern cabbing machine. But I got the Kingsley North specifically because of the wheel spacing. Luckily I had experienced enough knuckle grinding on club borrowed other brand machines and knew a little of what I did and didn’t want. I’m pretty happy with it but I do appreciate that knowing how to build or repurpose equipment in an old school way would be a beneficial skill. I hope this info doesn’t get lost with time. We are currently refurbishing an old rock saw.
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Nov 14, 2024 18:17:57 GMT -5
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
