Sum the same kind of thicknessThe example stack interval fits inside the entered target interval. It remains a one-dimensional bookkeeping result, not a prediction of actual press performance.Sum the same kind of thicknessUse independent pressed / cured bounds and a consistent measurement conventionTarget: 1.60 ± 0.10 mm1.401.501.601.701.80Allowed: 1.50–1.70 mmEntered sum: 1.52–1.65 mmArithmetic fit does not predict resin flow, cure or local thickness.³Ô¹Ïtv · Engineering explanation · Conceptual, not to scale