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Goldsmiths began to use hydraulic presses in small shops in the 1940s in North America. Factories have used hydraulic presses for making blanking out parts and forming pieces for some time, and presses in the 150 to 200 ton range are not unusual in jewelry factories today. These need good machine guarding, maintenance and training for the operators. The smaller shop at the end of the 20th century tends to use slowly operated hydraulic presses in the 12 to 25 ton range for forming operations and some minor blanking, this last often carried out using R.T. or pancake cutting dies. It is the smaller presses I will discuss here...
(1999) Complete Story
A perfect crystal is bounded by plane faces which meet at angles specific for each kind of material (angle analysis can identify minerals). A crystal may be cleaved in directions related to the external form or to a possible crystal form for the mineral. Sometimes two distinct minerals can have the same chemical composition with their differing properties being due to their different crystal structure. Crystal structure affects mineral properties.... (1997) Complete Story
The Art versus Craft issue is a complex question and one that has bedeviled creators a great deal in the last fifty years or so. I once heard a gallery owner say that the difference between an art object and a craft object is $3000. The American Craft Council's director Carmine Branagan says that the discussion is unimportant, that the craft/art debate is one of craftspeople talking to themselves, about issues that do not matter at all to the general public - they do not care about this particular debate. She holds that if we are educating the culture as makers then the real issue is getting the work and what it means out and before the public, especially through galleries, museums and publications, the validators in society....
(2004) Complete Story
Repairing jewellery is an extremely tricky job. Work often pretends to be something else, metal is not what it is labelled, or sold as and the customer's memory fades with time, so that jewellery is often given to the repair person as something different thas it's real condition or materials. What follows is a list of questions... (1992) Complete Story
Jump rings may be made most easily by using a small hand drill with various sizes of mandrel. Take a broken burr, old needle file handles or a piece of drill rod and make a slit near the end. (I would use a separating disc to do this). Or one may drill a hole through the rod. Then it may be set into a hand drill or a flex shaft handpiece....
(1999) Complete Story
