Box Build Assembly FAQ

We integrate and deliver complete electromechanical units from an agreed product definition. A typical scope can include enclosure preparation, approved PCBA installation, cable harness routing, purchased-component installation, firmware or configuration loading, finished-unit inspection, functional testing, labeling, serialization, documentation and packaging. The quotation and responsibility matrix identify the activities included for the specific project.

The customer provides or approves the product definition and acceptance basis. This normally includes the current BOM, assembly drawings, enclosure and interface data, approved PCBA and harness definitions, firmware or configuration files, test procedures and limits, label artwork, packaging requirements, forecast or build quantity, and any customer-supplied material. Open items are recorded rather than treated as approved requirements.

We review the complete mechanical and electrical stack before release. Enclosure features, mounting hardware, board location, connector presentation, harness routes, grounding, strain relief, thermal interfaces, service access and assembly order are coordinated as connected system requirements. Approved parts are then installed and checked through controlled work instructions and finished-unit verification.

A functional-test scope needs an approved procedure, setup conditions, required fixtures or interfaces, software or configuration revision, test limits, expected observations, pass or fail logic, data fields and failure-handling rules. The customer should also identify who supplies test assets and who has authority to approve changes, deviations, rework and release.

NPI turns preliminary product inputs into a controlled build package. A pilot build is used to confirm assembly sequence, material identity, fit, routing, configuration, test execution, inspection points, records and packaging before repeat production. Findings are documented for engineering review, and approved updates are incorporated into the applicable BOM, drawings, instructions and test files.

Send the current BOM and approved-source information, assembly drawings, enclosure CAD or drawings, PCBA mounting and interface data, harness drawings or connection maps, firmware and configuration requirements, functional-test package, labels, packaging instructions, quantity or forecast, target delivery condition and a clear list of customer-supplied items. Preliminary files are acceptable when their status and known gaps are identified.

Quantity and production fit are reviewed for each project using product maturity, assembly content, material availability, tooling or fixture needs, test complexity, configuration mix, change exposure and the intended next stage. A prototype, pilot or repeat build is quoted against its actual scope rather than against a blanket threshold.

Each proposed change should identify the affected BOM, drawings, firmware, test procedure, labels or packaging and state the approval owner. The released ECO or ECR defines the effective unit, batch, serial range or date, plus the disposition of existing material, work in progress and completed units. Related work instructions and records are updated together before the change enters the build.

Yes, when the serialization rules are defined in the project scope. The customer supplies or approves the identifier format, allocation method, label content, placement, duplicate-prevention rules and any data exchange requirements. Serialization can then connect the physical unit to its approved build and handover records.

Traceability depth is agreed per project. A record can link a unit or batch to the applicable product revision, key component or PCBA identity, firmware or configuration, assembly traveler, inspection and test status, approved deviations, rework and retest, serial number, accessories and shipment. The required fields, retention period and delivery format must be defined before production release.

We describe production as operating under certified manufacturing systems and keep that statement separate from product certification. Product-level safety, EMC, radio, environmental or market-access requirements remain project-specific. The responsibility matrix should identify who owns the product design, certification plan, approved components, laboratory testing, technical file and final declaration, while our scope records the agreed assembly and verification evidence.