Help! Sizing rings!

I am an amateur and I like to make rings. Sometimes I have to
resize said rings in which case they never come out the size that
I want them. They always come out too small and I end up having
to spend an extra 15 min. sanding out the hammer marks where I
enlarged it. Can anybody help me!! I have had this problem from
the very beginning. I have a jeweler friend who can resize just
by experience. I envy her. Any help would be appreciated.

Marshall Jones
jones@perigee.net

Hey Marshall ! Every whole size up or down is 2mm. Use your Dividers on the Scale that is on the back of your Mandrel to show you the width of the piece you will either add, or subtract.

each size up is appox. 2.5 mm. put your ring on a ring stick(make sure your
sizing rings and your mandrel agree sometimes they don’t)now if your ring
reads size 5 and you need a 7 add a piece that is 5mm(2x2.5mm). This should
work and the same can be used for downsizing.

sross

Marshall,
Try the following: A size 1 ring can be made from a wire one and
one-half inches in length and if the length of wire is increased about
1/8 inch it will make a size 2 ring. Increase the length of wire 1/8
inch for each additional size.A size 6 ring is a bit less than 2 1/8
inches in length if it is made from a straight length of wire.This is
approximate but close enough to yield good results. Most books have a
chart on length of wire for each ring size as well as other instructions
you might find useful…Gavin

I’ll throw in my 2 cents here - I use 2.5mm for my measurements with
good success.

When sizing up, cut the ring at the shank bottom and put it on your
mandrel - pulling it up to the size you want. Then cut a piece of stock
to that size and solder it in. I’d recommend a “hard” solder (higher
melting temp), which will help to alleve pits in the metal at the solder
joint.

When sizing down, simply cut out a piece that measures by the 2 - 2.5mm
standard (I use 2.5mm, but hey, I could be wrong).

Make sure your joint to be soldered is flush - no gaps in the fit
between the 2 sides.

Happy solders, Mike

I’ll throw in my 2 cents here - I use 2.5mm for my measurements with
good success.
When sizing up, cut the ring at the shank bottom and put it on your
mandrel - pulling it up to the size you want. Then cut a piece of stock
to that size and solder it in. I’d recommend a “hard” solder (higher
melting temp), which will help to alleve pits in the metal at the solder
joint.
When sizing down, simply cut out a piece that measures by the 2 - 2.5mm
standard (I use 2.5mm, but hey, I could be wrong).
Make sure your joint to be soldered is flush - no gaps in the fit
between the 2 sides.

In my lifetime, I think that I must have done somewhere well in excess of
40,000 sizing jobs. Maybe a lot more. I started in a trade shop that had 180
accounts. A lot of department stores and catalog showrooms.
One size is 2.5 mm. One half size is 1.25 mm. A quarter size is 2/0000
sawblade widths. We all had little brass sizing gauges glued to the top of
our benches for measuring with dividers. For sizing up, we would cut the
ring, slide it up the mandrel and fill the gap with an appropriate piece.

http://www.knight-hub.com/manmtndense/bhh3.htm
e-mail: @Bruce_Holmgrain
snail mail: POB 7072, McLean, VA 22106-7972, U.S.A.

each size up is appox. 2.5 mm. put your ring on a ring stick(make sure your
sizing rings and your mandrel agree sometimes they don’t)now if your ring
reads size 5 and you need a 7 add a piece that is 5mm(2x2.5mm). This should
work and the same can be used for downsizing.

2 or 2.5 mm, depends a lot on the size (thickness) of your blade and how
straight you cut your pieces.

John Dach and Cynthia Thomas
Maiden Metals
a div. of True greatness may be found in the
MidLife Crisis Enterprises humblest places.
PO BX 44
Philo, CA 95466
707-895-2635(phone/fax)
@John_Cynthia_MidLife

I am an amateur and I like to make rings. Sometimes I have to

resize said rings in which case they never come out the size that
I want them. They always come out too small and I end up having
to spend an extra 15 min. sanding out the hammer marks where I
enlarged it. Can anybody help me!! I have had this problem from
the very beginning. I have a jeweler friend who can resize just
by experience. I envy her. Any help would be appreciated.

Marshall Jones
jones@perigee.net

Cut out less material. Also check your ring mandril against your sizing
rings to see if the 2 pieces of sizing equipment measure “the same”.

John & Cynthia

John Dach and Cynthia Thomas
Maiden Metals
a div. of True greatness may be found in the
MidLife Crisis Enterprises humblest places.
PO BX 44
Philo, CA 95466
707-895-2635(phone/fax)
@John_Cynthia_MidLife

Gavin Gilmore wrote:

Marshall,
Try the following: A size 1 ring can be made from a wire one and
one-half inches in length and if the length of wire is increased about
1/8 inch it will make a size 2 ring. Increase the length of wire 1/8
inch for each additional size.A size 6 ring is a bit less than 2 1/8
inches in length if it is made from a straight length of wire.This is
approximate but close enough to yield good results. Most books have a
chart on length of wire for each ring size as well as other instructions
you might find useful…Gavin

Marshall - note that wire gauge is important in this formula. I
believe I have the formulas on my PC from a conversion charts table I
did back when I was teaching this stuff. Let me know if you’d like it,
Mike