Models that have been created using technology such as wax printouts can be cast directly in metal. Some casters will offer services related to CAD/CAM, including printing the rnodels and casting them for more details of diese processes.
Cleaning up castings of fashion jewelry
Castings are usually returned pickled, cleaned and lightly barrelled. A remnant of the sprue will still be attached, so pierce this off with a saw and file the area true to the form. The amount of work that needs to be done will depend on the type of form — heavily textured pieces will not rake as long as polished surfaces, which require more preparation. Sprues can be returned to the caster as scrap.
The cost of casting  fashion jewelry is dependent on several factors:
•The size of the piece – this determines how many pieces can fit on a tree
and therefore in a flask; the price will be a percentage of the flask price.
•The metal alloy used. Casters use their own metal stock and will not
accept scrap metal to be used for casting unless it is their own sprue
offcuts; this eliminates the risk of contamination.
•The current price of metal to make fashion jewelry.
The turnaround between handing in a wax to collecting the metal form is usually between four days and a week; mould-making services may take longer.
Electroforming is a process similar to electroplating, but with a thicker layer of fine metal being deposited on the surface of a nonmetallic object that has been coated with conductive paint. It is very good for making large hollow forms that would be difficult to construct in any other way.
The electroforming process Electroforming works on the sarne basis as elec¬troplating, but uses a soluble anode of the metal, which will be deposited onto the cathode. This is suspended in the electrolytic solution, along with the piece of work, which forms the cathode. The temperature of the chemical bath and its agitation with air bubbles are crucial to the even deposi-tion of metal onto the cadiode. Electroforming can only be done with pure copper, silver or gold, which means that the resulting forms are made from relatively soft metal, limiting its applica-tions. As with electroplating, the chemicals used in the process are extremely toxic, containing salts of cyanideThe main difference between this process and electroplating is that nonmetallic objects  can have a layer of metal applied to them, as long as they have been coated in a conductive metal paint. The resulting metal shell can be worked in a number of ways, depending on the intentions for the piece.
Electroforming can also be used to create metal forms from the insides of silicone moulds taken from objects or textures, which will create an exact replica with no loss of surface detail – it will give better results if the service provider makes the mould, as tliey will know the exact require-ments for a successful outcome.