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swap piece update!! |
Clarita
Tiki Socialite
Joined: Sep 26, 2006
Posts: 1234
From: BA Arg
|  Posted: 2007-03-01 09:14 am Permalink
I like this maori earrings style too, Congrats!!
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-01 2:19 pm Permalink
thanks clarita.
i'm wondering if anyone has any advice on drilling with the diamond bits. is there a tip or trick to keep them from walking when you're starting a hole?
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Benzart
Tiki Socialite
Joined: Jan 09, 2004
Posts: 10309
From: Port Saint Lucie, Florida
| Posted: 2007-03-01 7:26 pm Permalink
Really nice stuff Perry. I Really love that style. I'd Love to see you do more of these.
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Bowana
Grand Member (4 years) 
Joined: Nov 10, 2006
Posts: 1129
From: La Mesa, CA
| Posted: 2007-03-01 8:04 pm Permalink
Quote:
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On 2007-03-01 14:19, pdrake wrote:
i'm wondering if anyone has any advice on drilling with the diamond bits. is there a tip or trick to keep them from walking when you're starting a hole?
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Have you tried using a center punch to put a small divot in the material to get the drill started?
The earrings turned out really nice, by the way. Hopefully some lucky lady will receive them as a gift from you!
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-01 8:06 pm Permalink
thanks, dav. the diamond drill bits are flat on the tip. that's the problem.
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flynny
Tiki Socialite
Joined: Jun 19, 2006
Posts: 274
From: Devon, UK
| Posted: 2007-03-01 11:24 pm Permalink
PD, try initially drilling with the edge of the drill, gradually levelling the piece out, are you drilling freehand or with a machine.
Regards
Flynny
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-02 1:34 pm Permalink
freehand. that sounds like a good idea. i tried putting masking tape and going through that with it to guide the drill. didn't work too well. it's not bad, but i can see it.
thanks
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-02 6:34 pm Permalink
flynny, here's a pic of the detail stuff i use. it's silicone with grit embedded in it. it come white/100, blue/220?, and green/600?, there's also a pink i haven't used.
i'm not real sure of the grits, just a guess on feeling them.
[ This Message was edited by: pdrake 2007-03-02 18:36 ]
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JohnnyP
Tiki Socialite
Joined: Nov 23, 2005
Posts: 1689
From: Attica, MI
| Posted: 2007-03-03 1:19 pm Permalink
Quote:
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On 2007-03-01 14:19, pdrake wrote:
i'm wondering if anyone has any advice on drilling with the diamond bits. is there a tip or trick to keep them from walking when you're starting a hole?
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Try these carbide micro bits from harbor freight. I had a set of these sitting around and tried it and it works very well. I've drilled holes in jade, bone, other rock, and wood with them, just keep them wet like you would the diamond bits. They are very fragile so go slow and don't put any side pressure on them, they will snap. The good news is they drill as well broken as they do unbroken only you can't drill as deep a hole. These will drill a small through hole that is easy to open up larger with pointed diamond bits.
http://www.harborfreight.com/cpi/photos/34600-34699/34640.gif
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Paipo
Tiki Socialite
Joined: Jun 22, 2006
Posts: 1886
From: Aotearoa / NZ
| Posted: 2007-03-03 5:40 pm Permalink
Quote:
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On 2007-03-01 20:06, pdrake wrote:
thanks, dav. the diamond drill bits are flat on the tip. that's the problem.
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That is a problem - flynny's technique will work with those but I use these shapes for all my hole making needs:
The ball shapes are best as you can curve the hole if you need to. I tend to only use the round-end needles if I'm going deeper or just roughing out a hollow space.
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-03 5:52 pm Permalink
i kind of meant holes for inlays. i use the tiny balls to start holes and needle tips to go all the way through. i need a way to make a nice squared of hole with straight up and down walls.
thanks!
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Tamapoutini
Tiki Socialite
Joined: Aug 30, 2006
Posts: 1529
From: Aotearoa (New Zealand)
| Posted: 2007-03-03 6:10 pm Permalink
Quote:
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On 2007-03-03 17:52, pdrake wrote:
i kind of meant holes for inlays. i use the tiny balls to start holes and needle tips to go all the way through. i need a way to make a nice squared of hole with straight up and down walls.
thanks!
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In that case you'll probably need something more like the two seen here on the left; they would both leave a pretty much straight-sided hole... Both of these types are available in larger sizes. (if money is no object, burrs of ANY type or size can be turned by a metal-machinist & can be coated with diamonds at a company specialising in that)...
The two central core-drills are often used to make an inlay-hole with a central 'peg' left in the middle (as I usually make the eyes on my hei-tiki; although I dont use this tool to make the socket, preferring the more 'organic' feel created by going round & round with a small ball-burr (right)
I would also stick with diamonds over any of the other abrasive cutting materials.
Hope this helps.
Tama 
[ This Message was edited by: Tamapoutini 2007-03-03 18:11 ]
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-03 6:32 pm Permalink
those are the type i'm using. they tend to want to move a little when you're starting the hole.
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Paipo
Tiki Socialite
Joined: Jun 22, 2006
Posts: 1886
From: Aotearoa / NZ
| Posted: 2007-03-03 7:39 pm Permalink
It's probably the quality of the burrs. I've found anything other than the Hongias seldom run perfectly true in the handpiece and particularly when drilling holes tend to want to skip or kick out. They also tend to feather the stone (if using jade) around the edges of the hole. Make your hole smaller than you need so you've got some room for error, and then widen it out and flatten the bottom with a flat ended cylindrical burr like the one Tama posted 2nd from left.
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pdrake
Tiki Socialite
Joined: Jan 13, 2006
Posts: 1764
From: las vegas
| Posted: 2007-03-03 7:42 pm Permalink
thanks, that helps a lot. the lopacki burrs i got are pretty true. i recommend them. i cut all the inlays with the core drill on a press. it ran really straight and i think it was only $4 for the 4mm.
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