Board Mechanical Review

allspice-wayne commented

2026-07-21 15:55:52 +00:00

Member

What changed mechanically since the last review?

Updated mounting holes to match new mechanical drawing. Request complete mechanical review.

Board and Enclosure Fit

PCB outline and dimensions match the mechanical model and enclosure drawing
Mounting hole size, location, and plating confirmed. Keepout zones respected.
Board-to-board or board-to-chassis standoff heights verified
Any cutouts, slots, or notches in the PCB confirmed against enclosure features

Component Clearance and Height

Tallest components identified and cleared against enclosure lid, adjacent boards, and cables
No components within keepout zones around mounting hardware
Heat-generating components have adequate clearance for airflow or heatsink attachment
Component placement does not obstruct access to connectors, test points, or adjustment features

Connector Selection and Placement

Connector locations align with panel cutouts, cable entry points, and mating clearances
Connector mating direction verified. Adequate clearance for mating and unmating.
Connector mechanical retention reviewed. Locking mechanism or strain relief present where needed.
IP rating of connectors meets enclosure ingress protection requirement
Contact material and plating compatible with mating connector and environment

Thermal Management

Thermal interface materials specified where required. TIM type and thickness confirmed.
Heatsink or thermal pad attachment method reviewed. Mounting hardware and torque specified.
Airflow path unobstructed by component placement or board orientation
Operating temperature at worst-case power dissipation reviewed against component and enclosure ratings

Cable Routing and Assembly

Cable routing paths clear. No pinch points, sharp edges, or interference with moving parts.
Strain relief specified at all cable attachment points
Connector orientation supports efficient assembly and service access
Assembly sequence reviewed. No components block installation of others.

Regulatory and Marking

Required regulatory markings present and legible (IEC symbols, voltage, class)
Silkscreen and labels visible after assembly in enclosure
Serial number and revision marking location confirmed with manufacturing

Findings

No response

Sign-Off

No response

### What changed mechanically since the last review? Updated mounting holes to match new mechanical drawing. Request complete mechanical review. ### Board and Enclosure Fit - [ ] PCB outline and dimensions match the mechanical model and enclosure drawing - [ ] Mounting hole size, location, and plating confirmed. Keepout zones respected. - [ ] Board-to-board or board-to-chassis standoff heights verified - [ ] Any cutouts, slots, or notches in the PCB confirmed against enclosure features ### Component Clearance and Height - [ ] Tallest components identified and cleared against enclosure lid, adjacent boards, and cables - [ ] No components within keepout zones around mounting hardware - [ ] Heat-generating components have adequate clearance for airflow or heatsink attachment - [ ] Component placement does not obstruct access to connectors, test points, or adjustment features ### Connector Selection and Placement - [ ] Connector locations align with panel cutouts, cable entry points, and mating clearances - [ ] Connector mating direction verified. Adequate clearance for mating and unmating. - [ ] Connector mechanical retention reviewed. Locking mechanism or strain relief present where needed. - [ ] IP rating of connectors meets enclosure ingress protection requirement - [ ] Contact material and plating compatible with mating connector and environment ### Thermal Management - [ ] Thermal interface materials specified where required. TIM type and thickness confirmed. - [ ] Heatsink or thermal pad attachment method reviewed. Mounting hardware and torque specified. - [ ] Airflow path unobstructed by component placement or board orientation - [ ] Operating temperature at worst-case power dissipation reviewed against component and enclosure ratings ### Cable Routing and Assembly - [ ] Cable routing paths clear. No pinch points, sharp edges, or interference with moving parts. - [ ] Strain relief specified at all cable attachment points - [ ] Connector orientation supports efficient assembly and service access - [ ] Assembly sequence reviewed. No components block installation of others. ### Regulatory and Marking - [ ] Required regulatory markings present and legible (IEC symbols, voltage, class) - [ ] Silkscreen and labels visible after assembly in enclosure - [ ] Serial number and revision marking location confirmed with manufacturing ### Findings _No response_ ### Sign-Off _No response_