Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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  #1   Report Post  
Mike Henry
 
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Default Jeweler's Saws - Good Brands/Sources?

I'm looking for recommendations on good brands or sources for jeweler's
saws.

I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.


  #2   Report Post  
Martin H. Eastburn
 
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Default Jeweler's Saws - Good Brands/Sources?

Mike Henry wrote:

I'm looking for recommendations on good brands or sources for jeweler's
saws.

I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.


http://www.bridgecitytools.com/ok_default.html Gosh I thought this company would.

Mostly wood tooling but some are universal - US made with US material. FINE quality tools.
But nope.

Martin

--
Martin Eastburn, Barbara Eastburn
@ home at Lion's Lair with our computer
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder

  #3   Report Post  
Wooding
 
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Default Jeweler's Saws - Good Brands/Sources?

I'm a practising jeweller and have been using an Eclipse piercing saw frame
for the last 40 years. It works fine for me. I've seen much more expensive
ones but I wouldn't swap.

--
Regards, Gary Wooding

(Change feet to foot to reply)
"Mike Henry" wrote in message
...
I'm looking for recommendations on good brands or sources for jeweler's
saws.

I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.




  #4   Report Post  
bob mologna
 
Posts: n/a
Default Jeweler's Saws - Good Brands/Sources?

Grobet make a really nice saw frame.

"Martin H. Eastburn" wrote in message
. com...
Mike Henry wrote:

I'm looking for recommendations on good brands or sources for jeweler's
saws.

I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.


http://www.bridgecitytools.com/ok_default.html Gosh I thought this

company would.

Mostly wood tooling but some are universal - US made with US material.

FINE quality tools.
But nope.

Martin

--
Martin Eastburn, Barbara Eastburn
@ home at Lion's Lair with our computer
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder



  #5   Report Post  
Boris Beizer
 
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Default Jeweler's Saws - Good Brands/Sources?


"Mike Henry" wrote in message
...
I'm looking for recommendations on good brands or sources for jeweler's
saws.


I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.


Have you tried fixing it? If it's an ordinary jeweler's saw, the blade is
held in place by a movable flat plate against the frame -- the movable plate
and the frame must both be very parallel. Also, the fit of the movable
plate against the post or screw must be LOOSE. Sloppy here is better
because it allows the plate to align with the frame. Another, but less
likely possibility is that the screw used to adjust the frame size is loose
or worn. I've yet to see a jeweler's saw frame that couldn't be fixed by a
little judicious filing of the plates and/or retapping a screw.
I've got two saw-frames, probably Grobet's but the names are
worn off. The newer one I bought about 55 years ago as an apprentice. The
older one was my father's, which puts it about 85 or more years old. Both
totally serviceable and never a slipping blade that I can recall -- unless
the plates were dirty.
Of course, you may not have real jeweler's saw frame. If you
want to buy one, go to a professional jeweler's supplier such as Gesswein,
Ritter, or I. Shors. A good saw frame is a once-in-a-lifetime,
trouble-free, purchase.

Boris

--

-------------------------------------
Boris Beizer Ph.D. Seminars and Consulting
1232 Glenbrook Road on Software Testing and
Huntingdon Valley, PA 19006 Quality Assurance

TEL: 215-572-5580
FAX: 215-886-0144
Email bsquare "at" sprintmail.com

------------------------------------------







  #6   Report Post  
Stan Schaefer
 
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Default Jeweler's Saws - Good Brands/Sources?

"Mike Henry" wrote in message ...
I'm looking for recommendations on good brands or sources for jeweler's
saws.

I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.


The one I have I got from Brownells years back, www.brownells.com.
Before that, I had a couple of hobby shop ones that I had the same
problem you're having. I don't know of any domestic manufacturers,
all the ones I've seen, good and bad, have been imports from
somewhere.

Stan
  #7   Report Post  
Mike Henry
 
Posts: n/a
Default Jeweler's Saws - Good Brands/Sources?


"Boris Beizer" wrote in message
hlink.net...

"Mike Henry" wrote in message
...
I'm looking for recommendations on good brands or sources for jeweler's
saws.


I've been using what is probably an import and am frustrated by it's
apparent inability to keep the blade tensioned.


Have you tried fixing it? If it's an ordinary jeweler's saw, the blade is
held in place by a movable flat plate against the frame -- the movable

plate
and the frame must both be very parallel. Also, the fit of the movable
plate against the post or screw must be LOOSE. Sloppy here is better
because it allows the plate to align with the frame. Another, but less
likely possibility is that the screw used to adjust the frame size is

loose
or worn. I've yet to see a jeweler's saw frame that couldn't be fixed by

a
little judicious filing of the plates and/or retapping a screw.
I've got two saw-frames, probably Grobet's but the names

are
worn off. The newer one I bought about 55 years ago as an apprentice. The
older one was my father's, which puts it about 85 or more years old. Both
totally serviceable and never a slipping blade that I can recall -- unless
the plates were dirty.
Of course, you may not have real jeweler's saw frame. If you
want to buy one, go to a professional jeweler's supplier such as

Gesswein,
Ritter, or I. Shors. A good saw frame is a once-in-a-lifetime,
trouble-free, purchase.


Thanks for the input Boris. The problematic saw is a cheap import bought at
NAMES a few years ago from one of the vendors there. It's at work now, but
AIR it is made of stamped steel that is poorly chromed and I'd rather spend
a few bucks on a quality saw than an hour or so fixing a POS.

IAC, I've looked at the Gesswein site and would appreciate a recommendation
on the saw frames listed he

http://www.gesswein.com/catalog/cata...TOKEN=82164763

I'm inclined toward an adjustable frame and those all seem to fall in the
$10-20 range, but there's a fixed frame listed for $50. Is the extra money
for the $50 frame justified?


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Boris Beizer
 
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Default Jeweler's Saws - Good Brands/Sources?


"Mike Henry" wrote in message
...

"Boris Beizer" wrote in message
hlink.net...

"Mike Henry" wrote in message
...
I'm looking for recommendations on good brands or sources for

jeweler's
saws.


Thanks for the input Boris. The problematic saw is a cheap import bought

at
NAMES a few years ago from one of the vendors there. It's at work now,

but
AIR it is made of stamped steel that is poorly chromed and I'd rather

spend
a few bucks on a quality saw than an hour or so fixing a POS.

IAC, I've looked at the Gesswein site and would appreciate a

recommendation
on the saw frames listed he


http://www.gesswein.com/catalog/cata...TOKEN=82164763

I'm inclined toward an adjustable frame and those all seem to fall in the
$10-20 range, but there's a fixed frame listed for $50. Is the extra

money
for the $50 frame justified?

You don't want a "fixed" frame for reasons I'll give below. The one I like
best is the German, "flat" sawframe, # 187-1095 for about 10$. That looks
like the closest to a traditional sawframe and happens also to be the
cheapest.
I can't understand why any one would by a so-called "fixed" saw
frame -- especially since it costs about 4 times the regular adjustable saw
frame. The "deluxe" saw frame, for $56 has several things going against it.
For one, you can't adjust the frame size. This is important when you
consider just how expensive saw blades are. It will be a very long time
(years) before you acquire enough skill with a jeweler's saw before you wear
out your blades instead of breaking them. A very long time. With blades
at about 18 to 20 cents each, the money piles up. When you're learning, it
is nice to be able to shorten the frame and put in a half length, broken
off, blade. The shorter blade is also less likely to break.
Another thing I don't like about the so-called deluxe frame is its
size. It is heavy. And the big throat doesn't balance well. The narrow,
2.5 " frame is what you will use 99% of the time -- at least I do. Once in
a rare while, I'll take out my deep (5" throat") frame. Get the smaller,
cheaper, traditional frame for 10 bucks.
Learn with thick blades. E.g., #1 or #2 -- you'll break plenty of
those and it will take a long time to work up to being able to use 5-0 or
finer blades. The most common reasons for breaking blades is that the
stroke is not perfectly vertical -- that is, you tend to twist your wrist as
you stroke. This pinches the blade between the work and snaps it off. Here
are some more lessons in jeweler's saw 101.

1. You have to use a bench-pin to hold the work. Or some other fairly
rigid method. Bench pins are the best -- we've learned that after about
1000 years.

2. Both the work and the saw must be held very firmly. That is quickly
very tiring. The secret is to hold both loosely but securely with both
hands relaxed during the up stroke and to clamp down with your work-holding
hand on the dowstroke.

3. The stroke must be absolutely in line with the sawblade. Any wrist
rotation is deadly -- until you learn how far you can really go.

4. Blade should be tight. It should give a nice, high-pitched "ping" when
you pluck it. Second most common reason for breaking blades is that they
were not put in properly. See below.

5. Lubricate the blade with beeswax. This is usually kept as a melted
about the size of a dime on the right side of the bench pin -- lubricate
every two or three dozen strokes, depending on the metal. None for wood,
hardly ever for silver, more for gold, more yet for platinum. The blades
are really not designed for steel, so expect to break and wear out lots of
them.

6. Ask the women about it -- it's like sex, long, full-length, slow strokes
are best. Beginners sound like jackrabbits with their tiny, frenetic,
little strokes. Wears the blade out at only one spot. You'll find that
the full-length stroke actually cuts faster. Once you've mastered it slow,
you will speed up and then you'll be doing full-length, fast strokes -- even
better. But it takes time.

7. Eventually you learn that the jeweler's saw is often used on its edge as
if it were a file -- cutting with the protruding kerf -- gets in tight
spaces that no file can reach.

8. You tighten the blade as follows. It takes longer to describe than to
do. Some people tighten the bottom first, some the top first. I'll
describe it using the bottom-up method because it's the way I was taught.
I don't think it makes much difference which you do. I've described as a
right-handed sawframe (the clamp screws on the right side of the frame as
you look at the blade.) I've never seen a left-handed frame. The whole
process takes less than two second.

a. Loosen both the top and bottom clamps.
b. Place the blade between the clamps. That assures that there is no
bend to it.
c. Tighten the bottom clamp and see to it that in tightening, that you
have not induced any twist -- that is the blade should still be straight.
d. Put the top of the frame against the bench pin with the blade facing
you and the handle on your chest and push in just the right amount -- about
1/8" is all you need. Holding it place, tighten the top clamp.
e. Test the tension for a nice ping.
f. One swipe through the beeswax.
g. Go.

Boris

--

-------------------------------------
Boris Beizer Ph.D. Seminars and Consulting
1232 Glenbrook Road on Software Testing and
Huntingdon Valley, PA 19006 Quality Assurance

TEL: 215-572-5580
FAX: 215-886-0144
Email bsquare "at" sprintmail.com

------------------------------------------


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Mike Henry
 
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Default Jeweler's Saws - Good Brands/Sources?

Tried to thank you privately in email for the excellent writeup snipped
below but suspect that the email never made it to you.

So, thanks for taking the time to write that up - it's been a huge help.

"Boris Beizer" wrote in message
k.net...

snip

You don't want a "fixed" frame for reasons I'll give below. The one I

like
best is the German, "flat" sawframe, # 187-1095 for about 10$. That looks
like the closest to a traditional sawframe and happens also to be the
cheapest.

snip


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