LAPIDARY ARTS and FACETERS DIGEST
Issue No. 212 - Wednesday, September 24, 2003
Moderated by: Thurmond Moore III
Committed to carrying on the fine works of
Hale Sweeny and Jerry Dewbre
POST TO EITHER LINK BELOW:
VISIT OUR WEBSITE TODAY
Well, Only one taker on the new topic of the week.
This leaves me wondering if many "custom" cutters
use oval cuts or do they use more "exotic" shapes and
leave the other more "common" shapes to cutting houses.
Personally, I have never cut an oval. Many other shapes
but no ovals.
Get those post in for tomorrows digest.
Topic for the week:
Perhaps the subject of Cutting Ovals could be made one of those weekly
forum subjects that we haven't had for some time. I'm sure it would be
of interest to lots of newbies and not-so-newbies.
There is a great article in the current USFG newsletter on
Index to Today's Digest
01 NEW: Saw issues and un-needed equipment.
02 FS: MDR and Much discussed Ultratech
03 NEW: Sphere cutting
04: NEW: catalog of gem values
05 NEW: Not Ovals but a Custom shape Trilliant
06 NEW: Cutting Ovals !
07 NEW: Raytech Shaw Handpiece Conversion?
08 RE: Imperial Topaz
BUSINESS AND POLITICS
09 RE: New Laws.
Subject: Fw: Raytech Saw........
Date: Tue, 23 Sep 2003 14:47:04 -0400
To: "LapidaryArtsDigest" <firstname.lastname@example.org>
From: "Peter In Maine" <email@example.com>
I have just purchased an old trim saw unit Model AL-4S
#758................It is like new and works great but the I need diamond
blades for it.
The ID of the saw blade is less than 1/2" on this model............or it
might have had an arbor reducer.........Could be around 3/8".
What's neat about this little guy is that a foot pedal increases the speed
of the balde at will......Nice feature....
Anyboby have any answers on blades etc. Might need to have an adapter
turned down but spacing is critical to align the hole slot for the blade.
I also purchased a NEW....... POLY dual arbor model D
14...............two..5/8" shafts will take an 8" wheel or whatever and
width is 1 1/2"
Has the wheel housings and drip attachments, belt also...no motor.. This
has never been used...
Have no need for it, anyone interested write me.....Bought it at a mineral
auction last week. Why .....don't know...
Peter.........trees are turning here........leef peepers comin in from all
Subject: Ad 2 Faceting Machines
Date: Tue, 23 Sep 2003 13:22:45 -0700
From: TA Masters <firstname.lastname@example.org>
A very personal decision on my part to take on the support and college
education of my 18 year old grandson, and if necessary in 3 years his
1 MDR factory refurbished, desk set machine. Includes some dops and
laps. $600 net.
1 Stanley/UTC, recently checked over by several known, experienced
faceters who said it was a sturdy unit that most likely be put to
immediate use with no problems. May benefit from replacing exterior,
easily reached bearings. This unit has a recently constructed base,
probably 50 dops of all shapes and sizes carefully mounted in three
wooden frames, all marked as to mm's, etc. Some laps and miscellaneous
tools which came along with it. This also $600. net.
Much has been written online about this latter system, most of it in
support of Joe Rubin.
These machines are FOB my home in Oceanside, Ca. San Diego County. Pick
up or local delivery, no charge. Shipping at cost.
Subject: Sphere cutting
Date: Tue, 23 Sep 2003 20:23:42 +0100
From: "Paul Wheaton" <email@example.com>
I took my elder daughter with me to the last Rock and Gem show, she
bought several small spheres and expressed a wish to make some herself.
When we got home I looked through the catalogs and on the net for sphere
cutters but didn't fancy paying for a machine that she may use only
once, then I saw sphere cups in the Graves catalog that would fit on my
Graves MKIV faceting machine so I ordered them.
They arrived today with the other bits and pieces, but no instructions.
I have no idea how they work can anyone help?
Subject: catalog of gem values
Date: Tue, 23 Sep 2003 14:43:19 -0600
To: LapidaryArtsDigest <firstname.lastname@example.org>
From: gems <email@example.com>
I am looking for an up to date catalog of gem values. I have a copy of
"The Standard Catalog of Gem Values" by J. Sinkankas and A. Miller, but it
was printed in 1994. I am looking for something more up to date. Is there
anything out there? Or, is this book still the standard everyone uses?
Thanks in advance for all the help.
Hi Jerry, Don Clark of the IGS ( http://www.gemsociety.org ) maintains
a list of gem values. I believe it is available to members only though.
Subject: Not Ovals but a Custom shape Trilliant
Date: Tue, 23 Sep 2003 21:14:09 +0000
I have a problem I need the list's help to resolve. I have an order to make a
Trilliant that has a longer leg on one side than the other two points. That
parts sounds easy! Roughly, I think the points would be at (about) 90, 30, 64
on a 96 index. NOT 96, 32, 64. It is about 8.5 x 11.5 or approximately 125
ratio to L x W. It looks more "L" shaped tilted about 10 degrees to me. It
has two cuts along side to make it curve shape tapering to the ends. There
are plenty of trilliants in GEMCAD but no way to Scale this shape. It is not
symmetrical as one point is offset. I have seen this stone on the front of a
magazine at one time but forget where that was pictured. This is not a
standard cut trilliant shape or a Long Trilliant.
Does anybody know of an offset shape Trill design like this and you have a
drawing? It has been really frustrating to figure it out. Last resort, start
cutting it freeform and see what happens. But this will take some time and
cutting to get it right.
If anyone can help I would trade up to 500 carts of malaya garnet rough to
the holder of a drawing for this design. Remember, this is only a Trilliant
shape by name. It is custom by somebody and can't find it in L&S books,
Vargas, or Gram.
Contact me off line if you want, whatever works. I can send a rough drawn
shape from wax mold of ring too.
Everett in Lexington.
Subject: Cutting Ovals !
Date: Tue, 23 Sep 2003 17:35:55 -0500
To: "LapidaryArtsDigest" <firstname.lastname@example.org>
From: "Carl Mauritz" <email@example.com>
Hi Every One,
I've only been cutting for just over a year now and I started to cut Ovals
and with the help of Jack Sager he told me it's easyer to cut and polish the
facet in that angle before going to the next angle of cut. ( I was cutting
the whole thing then when I was on my last prepolish stage I'de find out I
was off a bit more then what polish could do to bring it in line.) Well I
tried it and found it to work better for several reasons, 1 It saves you
from having to go back and recut. 2. If some one talks to you, you don't
lose the place where you are cutting. 3. The stone looks alot better. I'm
cutting my secound stone in a Lazy Oval Amethyst from thunder Bay CA.
Subject: Raytech Shaw Handpiece Conversion?
Date: Tue, 23 Sep 2003 18:49:23 -0500
To: "LapidaryArtsDigest" <firstname.lastname@example.org>
From: "Rough Ventures" <email@example.com>
Does anyone know the name and contact information of the gentleman who
modifies Raytech Shaw handpieces to include a dial indicator to be used as a
depth of cut indicator? Or does anyone know how to add a dial indicator to
the handpiece, and be willing to forward me such information? Thanks in
Subject: Re: Issue No. 210 - Monday, September 22, 2003
Date: Tue, 23 Sep 2003 22:50:50 -0400
To: firstname.lastname@example.org (LapidaryArtsDigest)
From: Donald Allen <email@example.com>
RE: Imperial Topaz,
I've listened to and participated in a number of discussions, with
people who handle thousands of carats of Topaz, over the past 40 years,
regarding the difference bettween the two main Topaz trade names:
Precious ( Yellow Topaz ) and Imperial Topaz ( Orange with a distinct
red or pink in the color). There are also some of higher regard - > Red
Topaz, Pink Topaz, Lavender Topaz and a Sherry with a strong reddish
tone, that I know of and have handled and some of lesser regard - >
White ( some of which are destined to: magically become blue) Champagne
( If it has red/pink it has a higher regard than the following) and a
not terribly attractive Yellowish Brown sort. It was common knowledge
that many buyers ( This was a while back ) actually taped stones to
windows ( I think for a day or two) or left them sitting on coffee cans
( shorter period of time, can't remember exactly) etc. to see if they
fade, a home grown field test, done to indicate if or not they were heat
treated. I've also found that when in doubt about if or not red is
present, if one compares that stone with an known yellow stone with no
red in it, that the red will show itself, if it is there, in the
BUSINESS AND POLITICS:
Subject: reply to Rolfe
Date: Wed, 24 Sep 2003 10:29:03 -0600
From: "jake" <firstname.lastname@example.org>
I saw Mr. Rolfes letter the other day about politics. That there must be
some way for all of us to reach the political class, because they are
operating in a vacuum, unless that is you are a corporation. Although this
has nothing to do exactly with lapidary, the information below shows just
how badly things are broken, for broken they are. They are now preaching
educational reforms for the schools. We have alleged educators and others
drawing up plans to "improve things," they claim. These are the same group
that is responsible for the crisis, if one were not told constantly
otherwise, you would all believe it was deliberate. Some of you may have
notice that elected officials are longer representatives they are now "law
makers." Whose only function is to pass laws, most all of which favor the
few (those that pay them) at the expense of the many. It helps to have an
ignorant public to do this. It could also be that the model now accepted in
these circles is, that if it isn't broke, "fix" it until it is. I can not
claim to be able to fix the world, but as to educational reforms the
following is more than enlightening. The original article was Literacy and
Illiteracy; it is mostly unchanged, although condensed.
Learning to Read in Eight weeks
From the American Peoples Encyclopedia ) 1952
According to the U.S. Bureau of the Census, 2.7 per cent of the total
population above the age of 14 were illiterate in 1947. The rural farm rate
was 5.3; the urban rate was 2.0 per cent. This included a large immigration
into the states that followed the Second World War. According to the
Standard Examiner (Ogden, Utah), a paper I no longer will take, functional
illiterate collage students are now several times this rate.
Illiteracy is primarily due to the lack of adequate elementary education.
Although free public elementary schools are found in every state, the
substandard character of many of these schools, and the laxity which
standards are enforced in many communities, contribute to ignorance and
waste of manpower, which affected 1,704,000 men in the American armed forces
in World War II. Rejected at first, illiterates were later accepted and
given an elementary education while in Army training.
Accelerated Learning Program in the United States Army
In order to satisfy the need for manpower in the United States armed forces
during World War II, it became necessary to induct large numbers of
illiterate and non English-speaking men. By applying established principles
of education, the Army seceded in developing an amazingly efficient program
of education, a program that enabled the average illiterate or non-English
speaking man to acquire basic academic skills in eight weeks time.
Statistics on the reception centers where the special training units were
operated show that well over 90 per cent of the men seceded in reaching
acceptable standards with this course alone. Most in eight weeks!
Origin of Special Training Unit Men
Most of the men assigned to the special training units came from sections
of the country where schools were inadequate. Others came from the border
and coastal states, where immigrant groups sometimes managed to get by using
a very limited amount of English. "*In one Texas unit 95 per cent of the
trainees were non-English speaking men of Spanish or Mexican background,
some of these men had been by faced family needs which made them leave
school early. Still others had learned little during their years in school."
Learning to Read in Eight Weeks
Tests were employed to classify the men in one of four groups at the
beginning of the training cycle. If a trainee started at the first level, he
ordinarily finished the program in eight weeks. The men had to be able to
reach critical scores on tests of reading, arithmetic, and language ability
before leaving a unit. The maximum effectiveness of the instructional
material was assured by using them in small classes. The average class
contained 12 to 15 men. In classes of this size, errors and faulty habits
could be corrected at the onset and guidance and encouragement could be
offered according to the varied needs within every group.
Outstanding results secured in special training units suggest that
illiteracy need not continue to be a great social problem in America. Giving
educational opportunity to every boy and girl in America can eliminate it.
Meanwhile much can be accomplished along this line by extending educational
opportunities to adult levels and by applying the method which proved so
successful in the United States Army during the second world war.
Postscript: Some of the men, in fact a surprising number, were to go on
later and take advantage of the GI Bill and achieve advanced education. This
included everything from trade school to advanced college degrees.
RESOURCES FOR LAPIDARIES:
PERSONALS: (General Lapidary and Faceting)
Lurking is fine, but participation is better for learning !
Post something from your experiences in gemcutting today!
TODAY'S FUNNY ~
Earthquakes can strike without warning, and being prepared for such
a disaster can mean the difference between life and death. Here are some
tips someone has offered to help you and your loved ones make it through
~ Those living in areas not prone to earthquakes can respond quickly to
the plight of disaster victims in quake zones by complacently smirking
and saying, "I told you so."
~ To minimize loss and damage in a quake, try not to own things.
~ Practice your burrowing-out-from-under-40-tons-of-rubble skills ahead
~ Look out your window often. If you see a large, zig-zag-shaped
crevasse moving rapidly from the horizon toward your home, step either
to the right or the left.
~ For those who fear earthquakes, it may comfort you to know that a
majority of the damage during the 1906 San Francisco earthquake did not
come from the tremors themselves. Instead, it was from the raging,
out-of-control fires that consumed most of the city.
~ A doorway is the safest place to be during a quake. Eat, sleep, and
work in doorways.
~ Be sure to mail your house-insurance payments a full five business
days before a major earthquake strikes.
~ If you are caught in a major earthquake in Southern California and are
part of the entertainment industry, take a moment or two to reflect on
how grossly you've wasted your life.
TIDBITS AND REFLECTIONS~
"Don't accept your dog's admiration as conclusive
evidence that you are wonderful."
LIST and WEBSITE INFO~
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