Production

Lost-wax casting explained — how jewellery is multiplied

One wax, many metals — casting is how designs scale beyond the bench.

Lost-wax casting has worked for six thousand years and still runs the
jewellery industry: carve wax, encase in plaster, burn the wax out, pour
metal into the void.

The sequence

  1. Model — carved or printed wax, sprued to a tree.
  2. Invest — plaster flask around the tree.
  3. Burnout — the wax leaves (lost) in a kiln, leaving channels.
  4. Cast — vacuum or centrifugal pulls molten metal into every detail.
  5. Devest, cut off the tree, finish — the casting starts the REAL work:
    filing, sanding, polishing.

Why makers care

Casting turns one good design into consistent multiples — the bridge between
craft and production. It also recycles: old silver scrap becomes new pieces.

Where it sits in learning: after bench basics — the
casting course
assumes the foundation ladder
skills. Path: from hobby to certificate.

What students say

“I will use the skills acquired to make pieces for family, friends and of course, myself! If I could get to a point of eventually selling pieces, even better!”

— Elena A. (Australia) · published student feedback

“I enjoyed glass fusing because I wanted to learn about glass fusing and the class conducted provide enough information to play around with glass fusing.”

— Melani A. (Indonesia) · published student feedback

Free ways to explore

No sign-up, no payment — start with any of these.

Try a one-day jewellery class

Short experience classes at JDMIS need no tools, no experience and no commitment — a single session gives you a real taste of the craft.

Visit jdmis.edu.sg