Hydraulic Die Forming Discussion Group

Modified BDE Anticlastic Bracelet Die System to Set Stones

Jack Berry
berry2000@prodigy.net
Mon Jun 23

I have worked out an easy way to modify Lee's anticlastic bracelet system so a "platform" for a bezel set stone can be die formed simultaneously with the forming of the bracelet. I sliced a 3/16" "wafer" from a 0.5" diameter rod of delrin, rounded the edges, filed one side of the wafer to conform with the inside curvature of the anticlastic bracelet die and slid it into place between the die and a bracelet blank. The forming process creates a stone setting platform at the same time the bracelet is formed. The top pic shows the wafer set in place against the curvature of the die along with an inside view of the formed bracelet. The center pic shows an outside view of the bracelet with the platform. The bottom pic is a sterling bracelet which I textured in the hydraulic press with a "wire die system" I made leaving a plain surface in the center to set a stone. A system similar to the above discussion with the copper test bracelet was then used except the wafer was smaller and oval shaped to match the oval amethyst. I imagine multiple platforms could be placed in this manner but too many will use inside space and not leave enough room to get the urethane into place.

Platform Setting Die System

[ This message was edited on Mon Jun 23 by the author ]

Re: Modified BDE Anticlastic Bracelet Die System to Set Stones

Lee Marshall
lmarshal@bonnydoonengineering.com
Mon Jun 23

On Mon Jun 23, Jack Berry wrote
-------------------------------
>I have worked out an easy way to modify Lee's anticlastic bracelet

Good on ya' Mate!!! Well done. I am so pleased when someone takes one of my generic forms and takes it to another level. Looks as if you are still having fun.

Lee

Re: Modified BDE Anticlastic Bracelet Die System to Set Stones

jan pycke
info@janpycke.com
Wed Jun 25

What about this modified cork screw
from 1896? Making a flute, setting stones.
On Mon Jun 23, Jack Berry wrote
-------------------------------
>I have worked out an easy way to modify Lee's anticlastic bracelet system so a "platform" for a bezel set stone can be die formed simultaneously with the forming of the bracelet. I sliced a 3/16" "wafer" from a 0.5" diameter rod of delrin, rounded the edges, filed one side of the wafer to conform with the inside curvature of the anticlastic bracelet die and slid it into place between the die and a bracelet blank. The forming process creates a stone setting platform at the same time the bracelet is formed. The top pic shows the wafer set in place against the curvature of the die along with an inside view of the formed bracelet. The center pic shows an outside view of the bracelet with the platform. The bottom pic is a sterling bracelet which I textured in the hydraulic press with a "wire die system" I made leaving a plain surface in the center to set a stone. A system similar to the above discussion with the copper test bracelet was then used except the wafer was smaller and oval shaped to match the oval amethyst. I imagine multiple platforms could be placed in this manner but too many will use inside space and not leave enough room to get the urethane into place.

pull up a cone trough a pre-drilled hole

Re^2: Modified BDE Anticlastic Bracelet Die System to Set Stones

Jack Berry
berry2000@prodigy.net
Wed Jun 25

Very interesting, jan!! With your interest in the history and archeology of industrial tools you must have a wealth of knowledge that could be "cross-pollenated" into the jewelry/metals world. It is interesting that Lee Marshall's philosophy is to do exactly that with Bonnydoon Engineering. Also, in the history section of Phil Poirier's book, "Deep Drawing for Metalsmiths", he states that he started with a 1902 book entitled "Dies". ....Welcome to the Discussion Group, jan!!

On Wed Jun 25, jan pycke wrote
------------------------------
>What about this modified cork screw
>from 1896? Making a flute, setting stones.
>On Mon Jun 23, Jack Berry wrote
>-------------------------------
>>I have worked out an easy way to modify Lee's anticlastic bracelet system so a "platform" for a bezel set stone can be die formed simultaneously with the forming of the bracelet. I sliced a 3/16" "wafer" from a 0.5" diameter rod of delrin, rounded the edges, filed one side of the wafer to conform with the inside curvature of the anticlastic bracelet die and slid it into place between the die and a bracelet blank. The forming process creates a stone setting platform at the same time the bracelet is formed. The top pic shows the wafer set in place against the curvature of the die along with an inside view of the formed bracelet. The center pic shows an outside view of the bracelet with the platform. The bottom pic is a sterling bracelet which I textured in the hydraulic press with a "wire die system" I made leaving a plain surface in the center to set a stone. A system similar to the above discussion with the copper test bracelet was then used except the wafer was smaller and oval shaped to match the oval amethyst. I imagine multiple platforms could be placed in this manner but too many will use inside space and not leave enough room to get the urethane into place.

Re^3: Modified BDE Anticlastic Bracelet Die System to Set Stones

Lee Marshall
lmarshal@bonnydoonengineering.com
Wed Jun 25

On Wed Jun 25, Jack Berry wrote
-------------------------------
>>Very interesting, jan!! With your interest in the history and archeology of industrial tools you must have a wealth of knowledge that could be "cross-pollenated" into the jewelry/metals world. It is interesting that Lee Marshall's philosophy is to do exactly that with Bonnydoon Engineering. Also, in the history section of Phil Poirier's book, "Deep Drawing for Metalsmiths", he states that he started with a 1902 book entitled "Dies". ....Welcome to the Discussion Group, jan!!
>
>
>On Wed Jun 25, jan pycke wrote
>------------------------------
>>What about this modified cork screw
>>from 1896? Making a flute, setting stones.

Great illustration! Thanks for posting it. The process was used for internally flaring a juncture to add smaller tubes for boiler condensate tubes, either in copper or steel. Steam locomotove engines used this technique extensively throughout the early days, and it is still used in the nuclear "hot water" reactors. It added great strength to a connection, rather than simply drilling a hole in the main feed tube.
I certainly see where it would add another technique to the metalsmith's arsenal of techniques.
I echo Jack's welcome to the group!

Lee

Re^2: Modified BDE Anticlastic Bracelet Die System to Set Stones

Jesse Brennan
jkbrennan@worldnet.att.net
Wed Jun 25

Look at a T drill from Finland;
www.t-drill.fi/
I have one of the small portables in the shop and an extra 1/2 head ( I hope) someplace. These drill the hole on the way in then pull the collar on the way out.
They have bigger and other slick stuff too.
Jesse