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Lapidary / Gemstone Community Forum
March 20, 2019, 07:26:40 am
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Minimum bits for carving? And recommended?

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Author Topic: Minimum bits for carving? And recommended?  (Read 896 times)
Michellek1123
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« Reply #15 on: February 06, 2014, 08:53:21 am »

Asianfire!
Lol I'm Chinese. I have a ready supply of day to day use chopsticks, from lacquered to straight from the bush cuts.   

XD

When you say straight from the bush, I'm thinking those small, 3mm diameter ones? Or super thick cut to size?
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-Michelle
asianfire
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« Reply #16 on: February 06, 2014, 06:40:23 pm »

Never tried thin branches, would be hard to get the size for your hand-piece right.

No I take bigger pieces and then split them till I get the size I can use.
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Michellek1123
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« Reply #17 on: February 06, 2014, 08:38:59 pm »

Oh...... I'll stick to chopsticks.   ......

Thank you and haveaniceday2
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-Michelle
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« Reply #18 on: May 08, 2014, 07:29:22 am »

More appreciated advise from a different topic on polishing
Michelle:

I use wood and brass points  that I have made myself to polish along with diamond powder and oil. I initially use the commercial diamond points for roughing out and then I use 200, 600, 1200, 3000 and 8000 grit with my handmade bits. This is a picture of the 600 grit bits. Some of them are nails or brass escutcheon pins, some are wooden toothpicks or corn cob holders, some are hand-turned brass or wood. I also made some felt wheels that are impregnated with epoxy, fumed silica (which acts as an extender) and diamond powder. I make the same style bit for every grit.

Before I had the diamond powder, I used sandpaper and jeweler's rubber polishing points. The rubber points are impregnated with grit and you can get them in about 4 different grits. It worked okay on softer (Mohs 6 or softer) stones, but for jaspers, agates and jades the diamond works a lot better. I understand that you've got problems getting supplies where you are; you can find some of the sandpaper at automotive stores in really fine grits; they use it for detail work.

I have tried everything I can think of to polish, and I encourage you to do the same. You never know what might work; I even found some plants incorporate fine silica into their cell structure and once they dry you can use them to sand. I have tried dried trumpet vine with limited success, and I've heard that some grapevine works well.

Hardware stores in the US used to standardly carry Pumice Powder, Rottenstone and sometimes French polish, primarily for wood-finishing. These are pretty fine grit and can be used for polishing; I made a paste of them with water.

Also, don't overlook the stones that are usually included in Dremel type kits; some of these are pretty fine and do a good job for pre-finishing. They are capable of being shaped to fit a carving, as you use them they will begin to conform to the space you're using them on.

Hope this helps. You carving is looking good!

Debbie K
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-Michelle


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