From Prototype to Mass Production: 5 Critical Sourcing Steps
Getting a design working in a prototype and producing it in the thousands create very different sourcing requirements. A part that's no problem in a prototype can turn into a headache in mass production because of MOQ, cost or lifecycle. In this article we cover the 5 critical steps to watch during this transition.
1. Verify the lifecycle
Make sure the parts you used in the prototype are ACTIVE and long-lived. Entering mass production with an NRND or EOL part means a forced redesign before long.
2. Re-evaluate MOQ and price
A part you bought individually for the prototype can have a completely different MOQ and break price in mass production. Recalculate the unit cost at your real production volume.
3. Establish multi-sourcing
Identify at least one alternative source or equivalent for every critical part. In mass production, single-source dependence is the biggest disruption risk.
4. Plan lead times
Detect long-lead items early and place them in the order schedule; otherwise a single part can make the whole production line wait.
5. Keep the BOM complete and current
Mass production requires a consistent, verified bill of materials. Regularly review your BOM for price, stock and risk.
The most overlooked point in the transition: the cost surprise
The cost of parts bought individually for the prototype doesn't reflect the real cost in mass production. A part that looks affordable at low volume can be more expensive than expected at high volume due to MOQ or packaging; conversely, a part that looks expensive in the prototype can become very cheap at a high break. That's why recalculating the entire BOM at real production-volume prices before entering mass production is essential.
Early verification pays off
Doing lifecycle, multi-sourcing and cost checks at the prototype stage prevents much more expensive surprises in mass production. Once these checks are set up, they become a reusable discipline in later revisions.
Frequently asked questions
Can prototype parts be used directly in mass production?
A review is usually needed: lifecycle, MOQ, cost and multi-sourcing must be re-evaluated for mass production.
What's the most common mistake?
Entering mass production with an NRND/EOL part, or with a single-source critical part, is among the most expensive mistakes.
How do I speed these steps up?
By pricing your BOM on a single screen and running a risk scan, you can greatly shorten the process.
Conclusion
The move from prototype to mass production is the real test of sourcing discipline. You can price your bill of materials and see the risks with the BOM tool, and identify alternative sources with the cross-reference and comparison tools.