joystik
off to a rocking start
Member since June 2010
Posts: 6
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Post by joystik on Jun 16, 2010 16:55:34 GMT -5
Hi. I didnt know where to post this, so any mods feel free to move this to the appropriate forum.
I am planning to make a necklace from stones that I have collected over a number of years. They are mostly black and white. Some are flat and others not so much.
The necklace I want to make is a copy of a precolumbian necklace found in the tomb of some ancient Indian queen who lived many hundred years ago in the Sierra Nevada. It is basicly made from cylindrical beads made from crystal rock found in the mountain in sizes from 10-15 mm in diameter and 4 - 20mm in length.
I only have a couple of dremel tools to work with for now. I dont think I will have $$$ for any upgrades at least this year. Im planning on making some cheap DIY stuff later on, but for now thats what I have.
I know many of you have used dremel tools successfully, and thats good news. However I tried grinding one of the rocks with every grinding stone that comes with the dremel kit and was really dissapointed. I barely scratched the rock and it ate most of the grinding stones. I supposed theyre made for metal only.
It would be great if you guys could show me in right direction on what dremel tips I need to cut, grind and shape the stones. And also how to drill the holes for the beads, I have broken a couple of drill bits with no results at all.
Thanks to all.
JoY!
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Post by jakesrocks on Jun 16, 2010 17:28:16 GMT -5
Did your Dremel kit come with the flexible extension and hand piece? If so, you're half way there. You'll need diamond bits, and they need to be run in water to lubricate them and keep them cool. You'll also need the Dremel drill press attachment and diamond drill bits. If you have a Harbor Freight store near you, they sell inexpensive diamond bits, but don't expect them to last long. The bits that came with your Dremel weren't made for grinding rocks Don
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Post by FrogAndBearCreations on Jun 16, 2010 18:20:02 GMT -5
I use diamond burrs to shape stones and diamond drill bits to make holes. In making a hole through a bead its best to just go to the halfway point and turn it over and finish from the opposite end. I have good success with a long taper point this way
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Jun 16, 2010 19:33:59 GMT -5
Silicon carbide bits will work and are cheaper, but take longer than diamond and wear out faster, and need water as a coolant/lubricant too.
Check the archives for DIY flat laps or a single expanding wheel with SiC belts ($3.00 each or less). Washing machine motor for free, shaft arbor $8.00, Dollar store bucket for water shield.
Got any pix of the necklace your modeling yours after?
Good luck and keep us posted on your progress,
Dr Joe
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joystik
off to a rocking start
Member since June 2010
Posts: 6
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Post by joystik on Jun 17, 2010 8:15:38 GMT -5
I have the dremel flexshaft and the drill press. I saw some cheap diamond burrs and carving bits kit at amazon.com, but I havnt seen any dremel diamond drill bits yet. Any pointers welcome.
About the lubrication, do i have to drill and shape the piece inside the water or do i drip water on it, how is it done?
On a side question, Where can I buy inexpensive diamond disc and belts for a DIY grinder? And please a little bit more info on what a shaft arbor is and how it is attached to the motor.
Please bear with me, im a complete newbie in this hobby and im not familiar with the terminology and tools.
Thanks to all for your replies.
JoY!
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Post by jakesrocks on Jun 17, 2010 8:46:03 GMT -5
Just google Diamond Tools. You'll find thousands of adds to look at. Some, but not all will ship to South American countries.
For lubrication, I'd use a steady light flow of water, or else work your pieces in a plastic bowl of water. I have one friend who uses KY Jelly for a lubricant / coolant for all of his drilling, and swears by it Don
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joystik
off to a rocking start
Member since June 2010
Posts: 6
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Post by joystik on Jun 17, 2010 22:16:26 GMT -5
I saw some diamond cutting wheels and burr discs. What grit should I look for? There are many numbers and it gets confusing.
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jcinpc
has rocks in the head
Member since April 2009
Posts: 722
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Post by jcinpc on Jun 20, 2010 9:28:58 GMT -5
daniel lopacki is the bead making man, he does beautiful work. check out his page on it lopacki.com/howto/
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joystik
off to a rocking start
Member since June 2010
Posts: 6
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Post by joystik on Jun 21, 2010 10:26:04 GMT -5
I went through the site and its just what I was looking for. Excellent work.
Thank you.
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