From prototype to series production — what changes

The prototype was validated. It works. Now you need to go into production. Many engineers are surprised that "it is more complicated than it seems". Here is why.

What changes in the transition to series

1. Documentation becomes critical With prototypes, "on the fly" changes are normal. In series production, every change must be documented, approved and recorded. Without stabilized documentation, there is no reproducibility.

2. Tolerances must be verified in real production The prototype can "work" with more permissive tolerances (manual adjustments, on-site modifications). In series production, tolerances must be reproducible without intervention.

3. Material must be specified precisely The prototype was made from "what was available". In series production, material (grade, supplier, certificate) must be defined and verified lot-by-lot.

4. Sequence of operations is optimized With prototypes, the sequence of operations can be suboptimal. In series production, the order of operations influences cost, quality and production time.

What we prepare during industrialization

• We review tolerances and identify critical vs. those that can be relaxed
• We establish the optimal sequence of operations
• We define quality control points
• We prepare production documentation
• We propose design changes that reduce series cost without affecting functionality

Practical tip

Involve the supplier already in the prototype phase. If you know the part will go into series, you design differently — and save time and money in industrialization.