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Jewelry 1 min read

A Week in the Workshop: Notes on Failure

Five failed castings, two redesigned molds, and one very patient assistant. A diary of the week everything went wrong — and what it taught me.

Late evening at the workbench, single lamp lit over scattered tools
Day four. Still going.

Some weeks are for finishing things. This one was not.

Monday — the first crack

The mold cracked on the second pour, not the first, which somehow felt worse — like it had decided to fail only after being convinced to trust it.

Close-up of a cracked bronze casting on a workbench, surrounded by tools
Exhibit A. Kept on the shelf as a reminder.

What I tried

  1. Reinforcing the sprue.
  2. Slowing the pour by half.
  3. Preheating the mold for twice as long.
  4. Only the third one mattered.

Wednesday — the assistant

Every failed casting teaches you something the successful one will not.

My assistant pointed out — gently, the way you point out something to someone who clearly should have seen it themselves — that I had been measuring the wrong wall thickness on the pattern. An hour with calipers saved the rest of the week.

Friday — what shipped

The full process write-up, with measurements, lives in the engineering project log, for anyone trying to avoid my exact mistakes.