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LAPIDARY ARTS and FACETERS DIGEST
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Issue No. 283 - Monday, May 03, 2004
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Moderated by: Thurmond Moore III
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Committed to carrying on the fine works of
Hale Sweeny and Jerry Dewbre
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POST TO EITHER LINK BELOW:
lapidary@caprock-spur.com
faceters@caprock-spur.com
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VISIT OUR WEBSITE TODAY
http://www.gemcutters.org or
http://www.facetersdigest.org
*******************************************
Hi all, Imagine my surprise when I checked
for messages posted to the list over the weekend
and found 14 messages. It has been a while since
we had one that big. Keep up the great work.

There were several replies to my qwery concerning
my "Pink" saw coolant. Several guessed "Tool Cool".
Several others said RV antifreeze. I have some tool cool
and it smells different and is much less "oil like". I am now
guessing RV antifreeze as well since it is much Pinker than
tool cool and oily in consistency. It works quite well and I see
no issues with misting. Either way it is a covered saw in an open
air area so there shouldn't be any serious safety issues. I am a
hard core Dr. Pepper drinker so I have consumed my share of
food grade Glycols in the past. LOL

Thurmond

*******************************************
Index to Today's Digest

01  RE: Automated Faceting Machine wanted
02  RE: Pink Coolant for Slab Saw
03  RE: Polishing Large Table; HELP!
04  RE: bio Roxanna Abela
05  RE: Automated Faceting Machine wanted
06  RE: bio Roxanna Abela
07  RE: Pink Coolant for Slab Saw
08  NEW: History of Lapidary Equipment Makers
09  RE: Automated Faceting Machine wanted
10  RE: Pink Coolant for Slab Saw
11  NEW: Ultra-Tec Drip Tank Enhancement
12  RE: Pink Coolant for Slab Saw
13  RE: Polishing Large Table; HELP!
14  RE: Automated Faceting Machine wanted

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Message:01

Subject: Response to Brian Clifford
Date: Fri, 30 Apr 2004 16:28:28 -0300
To: faceters@caprock-spur.com
From: David <davids@cdlto.com.br>

     Dear Brian,
           Several years ago Norm Jarvi showed me one his firm had
developed.The program was include and you could use any computor 
Perhaps his firm still sells it. Facetron.
    David Epstein
--

David Stanley Epstein
Author: "The Gem Merchant
-How to be one, How to deal with one."
Website:www.gembuying.com
E-mail: davids@cdlto.com.br <mailto:davids@cdlto.com.br>
Tel: +55 33 3522-4724
Fax:+55 33 3521-5098

__________________________________________________________
Message:02

Subject: Coolant
Date: Fri, 30 Apr 2004 15:53:21 EDT
To: lapidary@caprock-spur.com
From: Cmsgt2@aol.com

Thurmond: That Is RV (emphasis on RV) antifreeze. I like it.
Don
Cmsgt2@aol.com

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Message:03

Subject: RE: I am currently trying to polish the table on a smoky quartz
Date: Fri, 30 Apr 2004 16:02:37 -0500
To: "'LapidaryArtsDigest'" <lapidary@caprock-spur.com>
From: "Carl Mauritz" <gemhunter@frontiernet.net>

Hi Tom,

Try 50,000 diamond on a Batt lap. I use it all the time for my polishing.
The more you use the lap the better it gets.

 Warm Regards
Carl Mauritz
http://www.huntforgems.com <http://www.huntforgems.com/


__________________________________________________________
Message:04

Subject: Re: Bio; Roxanna Abela
Date: Fri, 30 Apr 2004 15:57:07 -0700
To: <lapidary@caprock-spur.com>
From: "Donald Clark" <admin@gemsociety.org>

>Hello I'm so glad I found this web sight and I hope you can get me started.
I've been a rockhound forever and I just purchased a Star Diamond
combination rocksaw,grinder and polisher and I'm not sure how to set it up
or the proper cutting proccedures. I bought it used and it has no manuals it
is a C6 model Series 6754. I would truly like to get started in lapidary
skills and would appreciate any feed back or information on where to start.
I believe that lapidary work should be kept alive and am very excited to get
going. Thank you for your time and I hope to hear from you soon.<


Dear Roxana,
   I have an article on line that may be of help to you:
www.gemsociety.org/info/lap23.htm It describes cabochon cutting with a
fair amount of detail.

Sincerely,
Don Clark
www.gemsociety.org

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Message:05

Subject: automatic facetting
Date: Fri, 30 Apr 2004 20:24:58 -0300
To: faceters@caprock-spur.com
From: Robert <robertplowejr@uol.com.br>

>I am looking for an automatic facetting
>machine. One with a computer,

"KLM Technology Inc. is a development company that specializes
in fully automated technical machine faceting. Our advanced
computerized machinery can take any faceting, regardless of
how complex and demanding, and produce it with uniformity
and accuracy".



KLM Technology Inc. <http://klm.bz/indexeng.htm>
... One company is seeking to change the stone cutting industry in a
great way. KLM Technology
Inc. is a research and development company in the gemstone industry. ...
klm.bz/indexeng.htm

Standard disclaimer.

Best regards,
Robert Lowe
Lowe Associates - Brasil
Gemstones, Rough, Specimens
Tucson - February 2 - 7, 2005 - GJX # 205
e-fax: 1-240-757-6022
e-mail: USA    < robertplowejr@juno.com >
e-mail: Brasil < robertplowejr@uol.com.br >

__________________________________________________________
Message:06

Subject: Re: Issue No. 282 - Friday, April 30, 2004
Date: Fri, 30 Apr 2004 22:34:43 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Kreigh Tomaszewski <Kreigh@Tomaszewski.net>

Hi Roxanna!

Star Diamond was taken over by Barranca Diamond Products Inc. some years
ago; www.barrancadiamond.com or 310-532-5867. You may be able to acquire
a manual from them.

Your best help in getting started with lapidary is to find someone to
show you the basics. Your local rock club is probably the best place to
start looking. You can find a pretty good list of rock clubs at
www.amfed.org and will probably be able find one near you.

Lists like this are great when you need to find something, or if you
have a problem or specific question. They are not very good at training.

Welcome to the group!

Kreigh

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Message:07

Subject: pink colant
Date: Fri, 30 Apr 2004 20:51:06 -0600
To: <lapidary@caprock-spur.com>
From: "steve overlease" <cny76236@centurytel.net>

Hi,
     I just purchased a MK Diamond tile (trim) saw  which came with a
bottle of pink coolant concentrate which mixes 8 oz to 1 gallon of
water. Tool_Cool is the name and it has a pleasant odor and cleans up
easily. It is produced by Lapcraft, Inc.  195 W Olentangy St., Powell,
Ohio 43065
This is my only experience with additives, so I don't know if anyone
else makes pink stuff? I have been using mineral oil purchased from a
veterinary supply store. good luck with your saw!
Steve    cny76236@centurytel.net

__________________________________________________________
Message:08

Subject: History of Lapidary Equipment Makers
Date: Sat, 01 May 2004 00:06:29 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Kreigh Tomaszewski <Kreigh@Tomaszewski.net>

One of the reoccurring questions on this (and many other) list(s) is "I
have found a xxxxx model yyy lapidary machine. Where can I find a
manual/part/more information about it?".  And the answer is usually that
zzzzz bought them out many years ago.

A couple examples...

Star Diamond was taken over by Barranca Diamond Products Inc. some
years ago; www.barrancadiamond.com or 310-532-5867.

Highland Park was taken over by Diamond Pacific Tool Corporation
some years ago; www.diamondpacific.com or 800-253-2954.

I would like to collect and publish this history on my website. But I
need some help. Can you remember any old manufacturers of lapidary
equipment and what happened to them? Do you remember when? If so please
share what details you have with me so I can make the information
available to everyone.

Thanks!

Kreigh

__________________________________________________________
Message:09

Subject: Re: Issue No. 282 - Friday, April 30, 2004
Date: Sat, 01 May 2004 00:19:03 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Kreigh Tomaszewski <Kreigh@Tomaszewski.net>

LapidaryArtsDigest wrote:
> __________________________________________________________
> Message:03
>
> Subject: Facetting gemstones. A leap forward please
> Date: Sat, 24 Apr 2004 09:59:58 +1200
> To: LapidaryArtsDigest <lapidary@caprock-spur.com>
> From: Brian Clifford <pesty@paradise.net.nz>
>
> After all this talk about Jam pegs, cutting on glass, machines made out of
> wire etc, I cant help wondering if we are all taking a great leap backwards.
> With so little time available to me with all the pressures of work, and
> still having to earn a living,  I am looking for an automatic facetting
> machine. One with a computor, that basically does all the work for me.  I
> know  that several companies off shore, mainly in Thailand, and now even
> Australia use them, . Can anyone tell me where I can source one of these.
> Cheers
> Brian Clifford
> pesty@paradise.net.nz
> New Zealand
>
> __________________________________________________________

Brian,

My search on Google for "automatic faceting machine" had hundreds of
hits, with several manufacturers on the first search page. They are easy
to find, but not cheap.

YMMV.

Kreigh.

__________________________________________________________
Message:10

Subject: Pink Lube
Date: Sat, 01 May 2004 10:06:28 -0400
To: lapidary@caprock-spur.com
From: "Frank lavin" <nival42@hotmail.com>

Thurmond

Sounds like   Tool Cool

Frank

__________________________________________________________
Message:11

Subject: Ultra-Tec Drip Tank Enhancement
Date: Sat, 01 May 2004 15:47:50 -0400
To: lapidary@caprock-spur.com (LapidaryArtsDigest)
From: mskelly <mskelly@gte.net>

Hi,
         Over a couple of years or so, the control valve on my Ultra-Tec
drip tank became increasingly difficult to turn. I eventually began using
pliers. This wore of some of the knurling on the control. The increased
leverage was over-kill and caused me to worry about damaging the control by
overtightening. Plus the need to use pliers was a royal pain.
         My solution? I added a lever to the drip tank control valve. If
you need (or just want) one, pictures can be found at
http://www.the-gemmery.com/Information/Tips_and_Hints/Ultra-Tec-Drip-Tank-Lever.htm
         Regards,

                 mike in West Coast Florida
www.the-gemmery.com

__________________________________________________________
Message:12

Subject: Re: Issue No. 282 - Friday, April 30, 2004
Date: Sat, 1 May 2004 18:10:04 EDT
To: lapidary@caprock-spur.com
From: Ntrle@aol.com

I've seen pink anti-freeze, and wouldn't put it past 'em

__________________________________________________________
Message:13

Subject: Re:Polishing Large Table
Date: Sat, 1 May 2004 16:43:43 -0700
To: faceters@caprock-spur.com
From: Phillip L Stonebrook <plstonebrook@juno.com>

<<Tom Wilkie wrote: I am currently trying to polish the table on a smoky
quartz 43 mm standard round brilliant. I prepolished with a very worn
1200 Dyna Lap. I have tried polishing with a cerium oxide Ultra Lap, with
a Spectra Ultra Lap, with .3 micron aluminum oxide on a tin lap, and with
50K diamond on a ceramic lap.  So far I have put in scratches with the
ceramic lap, and made little progress with all the others.  I knew
polishing the table would be a bear--but not a bear this big and
mean!!!!!>>

Tom...

I have cut one large oval Smokey with a table 17 x 26mm. I found the "old
masters" knew what they were doing when they scored their lead/tin laps,
and found this was the only way I could make progress polishing this
large table with 14K diamond powder. The "raised" ridges allows greater
force to be applied to a smaller portion of the table, as necessary, as
the lap rotates, thus allowing polishing progress. Pre-polish your table
again to get the scratches out, and try this scored lead/tin lap approach
.. worked for me.
 
Good luck...
Phil in Florida

__________________________________________________________
Message:14

Subject: an automatic facetting machine
Date: Sun, 02 May 2004 09:04:02 -0300
To: lapidary@caprock-spur.com
From: Robert <robertplowejr@uol.com.br>

  The cutting edge
Are machines that cut gemstones the wave of the future or an unnecessary
expense?

By D. Douglas Graham
June 2003

Until fairly recently, gem cutting was one of the few areas of the world
economy to remain uncontaminated by the computer revolution. All of that
changed with the proliferation of personal computers in the 1980's and
90's Since that time, new computer based technologies have trickled to
all segments of the trade from huge, commercial gem cutting operations
to thousands of semi-professional faceters and hobbyists at work around
the globe. Nowadays, gem cutters from Boston to Bangkok work hand in
hand with computers, software, sophisticated instrumentation, and
robotic automation to maximize efficiency and reduce waste.

The area where gem cutting technology has the biggest potential is in
high volume cutting. The vast majority of commercial cutting done today
is labor intensive and low tech, and the business goes to the country
with the lowest labor costs.

Robotic cutting has been adopted in countries with high overhead and
labor costs, although it is still far from common. One success story has
been Israel, which has built a reputation on precision cutting of
emeralds, precision which was achieved through the use of computerized
gem cutting machinery.

As labor costs continue to rise even in historically inexpensive
countries like Thailand , more gem cutters are beginning to explore high
tech solutions.

"We are a volume producer and recently decided to introduce two pieces
of robotic technology into our facility," says Eunsok Lee, vice
president of Paramount Gems Trading Inc., a volume cutting house based
in Manhattan.

"The up side of the technology is that it allows me to produce more
product less expensively and more efficiently. The down side is the fact
that labor and operational costs in New York City are killing me. Even
though I don't have to hire a big staff of cutters, I still have to pay
technicians more than $100 an hour to maintain the system. There are
other costs too, most of them the result of just being in Manhattan.
It's hard to tell at this point whether it will turn out to be cheaper
to cut the stones in house using robotic technology or to import them
from some country in Asia where wages and overhead are low and prices
follow suit."

For others, the costs outweigh the potential benefits. "We are one of
the largest colored stone cutters in the business," says Bart Curren,
cutting manager at Columbia Gem House in Vancouver , Washington . "We
looked at robotic cutting and pretty much decided against it. Each piece
has to be individually worked, and the problem is volume level.

The machines are only effective if you're cutting one type of stone in
one shape and size. Once you finish a run you can change it, but you
have to have enough rough available In the next run to justify it. You
couldn't do blue tourmaline, for example, because you could never put
enough volume together in an automated machine.

"It's really a matter of cost," he continues. "For all the, work you
have to do to get the machine set up it costs same to cut five stones as
it does 50. We found that we could do as good a job without robotic
machines as with them. us, the technology just doesn't cut the mustard.
Why spend more money when you don't have to?"

New innovations in computerized cutting systems change the equation,
however. One promising system has developed by Sri Lanka based Cambridge
Gemonics Pvt. "While there are other companies that have multi spin
technology and are cutting gems in large quantity, they do not have true
robotic technology," says company President Sivam Krish. "They are stuck
with hard automation, though they claim to be doing robotic cutting.
They cannot do small quantities without having to reset the machine
manually, they cannot do fancy cuts."

Gemonics' system will cut gems that normally fall beyond the boundary of
machine cutting, automatically processing complex fancy shapes and very
small stones as tiny as 1.5 That's a new wrinkle on a technology that
some industry players still consider too costly to be viable.

"The difficulty was in achieving extremely high precision at high speeds
and very low costs, which was developed our system] over long periods of
time and continuous improvements over previous machines," says Krish. In
that aspect, he adds, Gemonics' soon to be releaseded robotic cutting
system will be unique, and may bring computerized cutting into factories
where it was never feasible before.

Human vs. Machine

 From the perspective of the independent gem cutter, whether amateur or
professional, technology has its good and bad point. Some faceters,
especially hobbyists, shy away from technology of any kind in the belief
that machines and software somehow diminish the gem cutter's art. Others
take the opposite view, re, lying on software and hardware to enhance
their own talents. Recent decades have seen the development of a wide
range of hardware and software that hone the art of faceting to a
cutting edge. Most are designed to eliminate guesswork and keep
accidents to a minimum.

One of the more popular programs is GemCad, Software package created
Gemsoft Enterprises of Austin, Texas. With GemCad, a cutter can build a
virtual model of a faceted stone before cutting begins. Another Gemsoft
product, GemRay, evaluates the optical performance of a given gemstone
and creates an image of the stone reflecting light. A third program uses
computer imaging to help users select the combination of angles most
appropriate for the material about to be cut.

I strongly advocate the use of a CAD program to obtain gemstone
designs," says amateur faceter Jerry L. Capps, who has competed in a
number of world class competitions and is currently working on a book on
computer aided design. "The contemporary approach, CAD designs, can
analyze brilliance through each gem material. Angles can be changed to
reach whatever goal is desired before actual faceting takes place. Even
the dispersion can be analyzed something the 'old master cutters' could
not do."

Augmenting software packages are faceting machines that achieve
accuracies within millionths of an inch. Some are computerized, though
most are not. The key advantage is the ability to accurately repeat a
facet pattern, thus saving time and reducing waste.

We make the Facetron, a non automated faceting machine without a
protracted angle," says Betty Jarvi, president of Jarvi Tool Co. "With
it you can set the angle to a tenth of a degree, just like you do with
an automobile odometer. That makes it very easy to get back to the exact
angle. There are lots of good faceting machines out there, but the best
of them allow you to duplicate the tiniest facet each and every time.
That's repeatability, and the high quality of the manufacturing makes
that repeatability possible."

As with the commercial robotic cutting systems, the big is with faceting
machines is the price. Depending on their Sophistication, faceting
machines can run between $500 and 5,000, says Nancy Attaway, newsletter
editor of the New Mexico Faceters Guild and president of High Country
Gems, Cutting house in Albuquerque . That's quite a pile for an amateur
whose commitment to the craft may be only part time. "The bulk of
American gem cutters work either as amateurs or in small, professional
studios," Attaway says. "While most enjoy comfortable working conditions
and have good machines to work with, many are stymied by the amount of
money they have to put out for instrumentation, software, laps, or what
have you."

"The only objection I have to cutting technology is the high cost, not
necessarily for faceting machines but for all the accessories that go
with them," says Ron Campbell, a professional faceter and custom cutter
in Santa Maria , California . "You don't just buy a faceting machine and
go to work. You also have to buy laps, alignment tools, and polishing
equipment, and that stuff can really kill you. You can usually pick up a
standard faceting machine at a decent price, but when you combine that
with the cost of everything else you wind up with a really hefty
investment. Maintenance is also a factor. Our machines run an average of
eight to 12 hours a day."

And despite the advantages of computerization, industry experts agree
that when technology competes with talent, talent wins every time.
However advanced it may be, a machine can only be as good as the operator.

"The usefulness of any technology is directly proportional to the
quality of the cutter the level of his experience and his understanding
of the craft," says Attaway. "A device or program equipped with lots of
bells and whistles may or may not do a fabulous job, depending on who's
using it and why. I have known lots of faceters that do magnificent work
with very simple machines, while some of the faceters I know who cut at
competition level feel they have to invest in binocular microscopes and
other extremely expensive technologies to get optimum results. [But] in
the end, it's the quality of the cutter that counts."

http://www.ganoksin.com/borisat/nenam/cutting-edge.htm


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Lurking is fine, but participation is better for learning !
Post something from your experiences in gemcutting today!
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TODAY'S FUNNY ~

Fixing an ailment
In Ireland there is a mental institution that every year picks
two of it's most reformed patients and questions them. If
they get the questions right they are free to leave. This
year the two lucky patients were Patty and Mike. They
were called down to the office and left there by the orderly.
They were told to wait as the doctor got their files. The
doctor came out and motioned for Patty to come in for her
questioning.

When Patty came into the office, she was instructed to
sit in the seat across from the doctor. "Patty, you know
the tradition of this institution so I imagine you know why
you are here. You will be asked two questions, and if
you get them right, you will be free to go. Do you
understand all that you have been told?" said the doctor
with a rather sly grin. Patty nodded, and the doctor began
to question her.

The first question was this: "Patty, if I was to poke out
one of your eyes, what would happen?" "I would be half
blind of course," Patty answered without much thought.
"What would happen if I poked out the other eye?" "I
would be completely blind," said Patty knowing that she
had just gotten her freedom. The doctor then sent her
outside while he drew up the paperwork and accessed
Mike's files.

When Patty got into the waiting room however, she told
Mike what the questions would be and what the correct
answers were. The doctor calls in Mike and he followed
the same procedure that he had with Patty. "Mike, the first
question is what would happen if I cut off your ear?" "I
would be blind in one eye," he said remembering what he
had been told.

This received a perplexed look from the doctor but he just
simply asks the other question so that he could figure out
what the man was thinking. "Mike, what would happen if I
cut off your other ear?" "I would be completely blind," he
answered with a smile as if he knew he had passed.

But then the doctor asked him what his reasoning was,
and he said flatly, "Me hat would fall down over me eyes."


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---mid 15th century proverb---

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Tempie Francis, Attorney at Law / Legal Advisor

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