Establish three independent reference chains
Contact geometry, workpiece position and foil path are adjusted through different mechanisms. They meet only in the stamping zone, so each chain should be restored and checked separately before evaluating the combined impression.
- Confirm the stamping face and supported workpiece surface meet in the intended plane.
- Confirm the workpiece datum places the decoration area under the intended tool area.
- Confirm the foil covers the full image area and leaves along a controlled path.