Measure the operating envelope
Record verified equipment dimensions, weight and photographs from several sides. Use the real equipment, the same orientation planned for transport, and one agreed unit system. Catalogue dimensions alone may omit knobs, feet, plugs or temporary attachments. For this custom flight case, the evidence set should explicitly cover verified equipment dimensions, weight and photographs from several sides.
Photograph the tape or calliper position and label every dimension. The measurement set should show the rigid body, the largest operating envelope and any part that is removed before packing, so reviewers do not combine incompatible values. Keep verified equipment dimensions, weight and photographs from several sides visible in the review record for this custom flight case.
Turn dimensions into usable clearance
Review operating access, removable parts and internal clearance. Clearance is a functional decision: a connector needs room to bend, a control needs hand access and a moving part needs an unobstructed path. Do not add one arbitrary allowance to every side. For this custom flight case, the evidence set should explicitly cover operating access, removable parts and internal clearance.
Mark surfaces that may support the load separately from surfaces that must remain untouched. Confirm where foam or restraints may contact the equipment and where ventilation, optics, displays or controls require a protected gap. Keep operating access, removable parts and internal clearance visible in the review record for this custom flight case.
Cross-check the loaded workflow
Validate transport route, loaded handling and written drawing review. Make a simple packing and removal walkthrough with the people who handle the equipment; it often exposes missing grip space, an incorrect orientation or a lid that cannot be stored nearby. For this custom flight case, the evidence set should explicitly cover transport route, loaded handling and written drawing review.
Issue a dated measurement sheet with photos, units and equipment version. Before fabrication, compare the drawing with that sheet and record any change to accessories, connectors or operating position. Keep transport route, loaded handling and written drawing review visible in the review record for this custom flight case.