Atoms Lab
DIGITAL MANUFACTURING · DIGITAL CRAFTS

Digital manufacturing technologies in jewellery making

Jewellery making is one of Oman's oldest crafts. Nizwa, Rustaq, Ibri and Sur are known for it, and pieces such as the banjari, the hanshiya, the simt and the Abu Sitt ring bear witness to it. The craft rests on the jeweller's expertise and precise hand, but producing fine detail and repeating the same piece at exactly the same dimensions takes a great deal of time and effort when it depends on handwork alone. This is where digital manufacturing comes in: the idea becomes a computer file, and the file then becomes a piece of jewellery made with high precision that can be repeated.

Atoms Lab brings these modern technologies to jewellery making through an integrated workflow. It starts with 3D design, or 3D scanning of existing pieces, moves through model making by 3D printing and wax milling, then lost-wax casting, and ends with laser engraving, laser welding and finishing. Throughout, the company provides technical consultancy, selects and installs the right equipment, and trains teams to operate it.

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A selection of gold and silver rings, necklaces and bracelets set with coloured stones
CRAFT AND DIGITAL TRANSFORMATION

What does digital manufacturing add to jewellery making?

In the traditional method, the model is carved by hand in wax, or the metal is shaped directly by hammering, cutting and soldering, and the precision of the piece and the time it takes depend on the jeweller's experience. It is hard to repeat the same piece with the same dimensions and details, and hard to estimate the metal weight before making it.

Digital manufacturing does not replace the jeweller's expertise; it adds tools that make the work more precise, faster and more flexible:

Quality and precision

The piece is drawn on the computer to set dimensions, down to fractions of a millimetre, so ring sizes, stone seats and wall thickness come out as designed and results are consistent from one piece to the next.

Speed

A jewellery model is printed in hours rather than carved by hand in wax, several models can be printed in the same batch, and more than one version can be tried before the final design is approved.

Creativity and innovation

Digital design makes possible pierced ornament, organic shapes and fine details that are hard to achieve by hand, and traditional Omani motifs can be redrawn digitally and developed in a contemporary spirit.

Repeatability and production

The design remains a digital file that can be printed and cast whenever needed, and a rubber mould can be made from it to produce larger batches, so every piece matches the original model.

Personalisation and identity

The size can easily be changed, or a name, date or logo added, for each order, either by editing the file or by laser engraving the finished piece.

Less metal waste, clearer costs

The design software calculates the volume of the piece, so the metal weight and cost are estimated before casting. Errors are caught on the computer before any gold or silver is used, and designs are kept in a digital library.

DIGITAL WORKFLOW

From idea to finished piece

Producing jewellery digitally involves four main stages, all starting from the same digital file. The following sections cover each one in detail.

The digital workflow: 3D design and scanning, then printing models in resin, then mounting them on a casting tree and burning them out in the kiln, then laser engraving
  1. 1

    3D design

    Drawing the piece on the computer or scanning an existing piece with a 3D scanner, applying casting rules and estimating the metal weight.

  2. 2

    Model making

    Printing the model in castable resin, or milling it from hard wax.

  3. 3

    Casting

    Attaching the models to a tree, pouring investment around them, then burning them out in a programmable kiln and casting the metal in their place.

  4. 4

    Decoration and finishing

    Laser engraving, cutting and welding, stone setting, then polishing, plating and testing the purity of the metal.

STAGE 1

3D design

From idea to production-ready file

Every piece of jewellery starts as a digital model, designed precisely in jewellery design software or captured from an existing piece by 3D scanning. The model takes account of casting rules, wall thickness and stone seats.

From the same file, the metal weight and cost can be estimated, the design can be shown to the client as a realistic image, and any change can be made in minutes instead of re-carving the model from scratch.

3D model of a ring set with a blue stone and small stones in jewellery design software
STAGE 2: MODEL MAKING

From file to castable model

After design, the jewellery model is made in one of two ways: printing in castable resin for complex shapes and fine detail, or milling hard wax for round shapes and smooth surfaces.

For complex shapes and fine detail

Printing in castable resin

Resin printers produce jewellery models in very fine detail from a dedicated resin that burns out completely in the casting kiln, so the metal takes its place.

They suit stone-set rings, pierced work and intricate ornament.

  • Several models in a single batch
  • Fine detail and piercing that are hard to carve by hand
  • A preview model for the client before casting
Ring models printed in castable resin, hanging from their supports on the printer's build platform
For round shapes and smooth surfaces

CNC wax milling

The milling machine carves the jewellery model from a block of hard wax, producing a smooth surface and precise dimensions, ready for casting.

It suits rings, bracelets and round shapes.

  • A smooth surface that reduces finishing after casting
  • High accuracy for rings and bracelets
  • Cast by the same traditional method
A desktop CNC machine for milling wax, next to a blue wax ring model held in a vice and a silver ring
STAGE 3

Lost-wax casting

Casting turns the model into metal. It is an ancient jewellery-making method, but today it is supported by digital models, programmable burnout kilns and modern casting machines.

From model to metal

The model is surrounded with investment and then burned out in a programmable kiln, leaving a cavity in the shape of the piece, into which molten gold or silver is poured.

Dozens of pieces can be cast in a single batch, or a rubber mould can be made to produce repeat batches of the same piece.

  • Programmable burnout kilns that store a burnout programme for each resin type
  • Vacuum casting that fills fine details
  • Remelting leftover metal to reduce waste
Two trees of gold rings after casting, before the rings are cut off
STAGE 4

Decoration and finishing

Ornament and identity are added to the piece with lasers and engraving machines, its parts are joined and repaired by laser welding, and it is then polished, its stones are set and the purity of its metal is tested.

Laser engraving and machine engraving

A fibre laser engraves names, ornament and logos directly onto metal, even inside rings, while digital engraving machines cut ornament with a fine cutting tool that leaves bright grooves.

  • Personalise each piece with a name or date
  • Maker's mark and purity on every piece
  • Machine engraving with bright grooves around rings and bracelets
An engraving machine cutting letters into the face of a gold ring, sending metal chips flying
Engraving letters on a ring face with a digital engraving machine

Laser welding

A laser welds jewellery parts at a very small spot, so work can be done next to stones without the heat affecting them.

A jewellery laser welder with a binocular microscope, a control screen and an enclosed work chamber
A jewellery laser welder with a microscope and control screen

Polishing, stone setting and purity testing

Pieces are polished in machines that handle several pieces at once, stones are set in their digitally designed seats, and the purity of the metal is tested without damaging the piece.

  • Polishing several pieces at once
  • Stone seats that match the design
  • Purity testing without damaging the piece
A magnetic polisher for polishing several pieces of jewellery at once
Magnetic polisher
DIGITAL CRAFTS

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Digital woodwork

CNC routing and carving, laser cutting and marquetry, inlay and printed jigs, all from one digital file.

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