Start with the latest approved source
List the model name, drawing numbers, revision identifiers and date of the approved package. Include the relevant general arrangement and sections if the animation needs more context than the model provides. Mark superseded documents. One source register prevents a camera sequence following an older assembly while the script describes a newer design.
Identify formats before sending proprietary files
Tell us whether you have native CAD, a STEP or IGES export, a Revit/IFC building model, or a viewing mesh such as GLB, FBX or OBJ. These are formats to discuss during the file review, not a promise that every native file imports unchanged. We confirm a suitable export, any required conversion and the information it retains before production. Drawings without an existing model require a separately defined modelling scope.
State units and dimension-critical features
Record millimetres, metres, inches or the applicable source units. Identify the dimensions, holes, interfaces and component positions that must remain faithful to the source. Include a known reference dimension so the import scale can be checked. A visually plausible assembly is not enough to confirm that a converted scene retained its intended scale.
Provide a component and movement description
A separated assembly tree, part list and naming convention help us control visibility, cutaways and exploded views. Supply the approved operating sequence, pivot locations, travel limits and assembly instructions where relevant. Identify motion that is purely illustrative. If a mechanism or process requires validated physical analysis, name the supplied analysis and the responsible reviewer.
For construction, supply stages and their owner
Provide the approved method or stage list, temporary elements and installation context. If dates need to follow a construction programme, include the relevant schedule and explain how model components relate to its tasks. An existing 4D export can be reviewed for presentation production. The planner confirms the method and schedule before the final film.
Define the video package and the first review
Specify the audience, target runtime, presentation deadline, required aspect ratios and screens. List captions, voice, language versions and selected stills. Name the technical and message reviewers and reserve review dates. Secure transfer, confidentiality, third-party tools and retention are agreed before proprietary files are shared. Source cleanup, missing detail and revisions affect the estimate as much as video length.
Send a brief first, then arrange file transfer
The public project form needs a description of the work and file formats, not your confidential assembly. We review fit and arrange an appropriate transfer method. The written scope identifies modelling, animation, render quality, review rounds, deliverables, price and timing. A short model-based film can be the first engagement, with broader production planned after that scope is clear.