Box build brings circuit boards, cables, mechanical parts and other specified items together into an assembly or finished product. The project boundary matters: a mounted PCB in an enclosure, a programmed system and a fully verified shipping unit are different deliverables.
Define the work and deliverable
Define the complete product configuration, including hardware, firmware, labels, accessories and packaging. Interfaces often create the hardest questions: cable routing, connector access, enclosure tolerances, thermal contacts and service access must agree across the electrical and mechanical files. Identify the person authorized to resolve a conflict between drawings.
Files and requirements to send
- System BOM, mechanical drawings, assembly sequence information and exploded or interface views.
- Cable and harness drawings, firmware release identifiers, label artwork and product-variant rules.
- Final verification procedure, required records, packaging specification and supplied fixtures or reference units.
Decisions to close before release
| Decision | What to confirm |
|---|---|
| Interfaces | Review mounting points, cable lengths, connector mating, access and mechanical clearances. |
| Configuration | Identify the board revision, firmware version, serial-number format and installed accessories. |
| Final acceptance | Specify system checks, labeling, visual requirements and the evidence required to release shipment. |
A practical planning example
A board can pass its bench test while the complete product fails because a harness pinout differs or a programming port becomes inaccessible after enclosure assembly. Plan where programming and verification occur in the assembly sequence. Confirm the sequence on a pilot with the same parts and configuration intended for production.
Can box build include packaging and shipment preparation?
It can be part of the requested scope, but must be agreed. Provide packaging drawings or requirements, label data, accessories, shipment grouping and any handling constraints. Do not assume that a quoted assembly charge includes retail packaging or distribution.
Compare the complete proposal
Ask for the included work, exclusions, setup charges, material responsibilities and schedule dependencies in writing. Use the quote comparison checklist to keep the same configuration and acceptance scope across offers.
Confirm project fit
[NEEDS CLIENT INPUT]: verified manufacturing site, relevant process limits, available equipment, certificates, MOQ and committed lead times for this service. The requirements above are a project-planning guide; availability must be confirmed against your actual files.
Related work in your build
Prepare the RFQ checklist, review quality and project fit, or browse all services.