FreeScan Omni vs FreeScan Trak Nova for Large-Part Inspection

FreeScan Omni and FreeScan Trak Nova can both support metrology-grade inspection, but they solve different setup problems. FreeScan Omni is the more self-contained choice when an operator needs to scan, inspect, and report at the part. FreeScan Trak Nova is built around optical tracking, wide-area coverage, and repeatable positioning across larger components.

Where the systems differ in practice

The most important difference is not the published point rate. It is how each system establishes and maintains the measurement frame while an operator moves around the part.

FreeScan Omni: inspection at the point of work

FreeScan Omni combines a scanner, onboard computing, a touchscreen, and an inspection workflow in one handheld unit. Its laser modes cover reflective and dark industrial surfaces, while infrared scanning provides a wider field of view for feature-based capture. The integrated video photogrammetry function helps control volumetric error on larger workpieces.

This architecture is useful for supplier quality, first article inspection, tooling checks, and field work where moving a laptop cart between stations would slow the job. The operator can scan, mesh, compare against CAD, and prepare a report on the device. A PC workflow remains available when the project needs a larger display or more extensive review.

FreeScan Trak Nova: optical tracking for broad coverage

FreeScan Trak Nova uses a tracked scanner and a separate wide-field scanner that also serves as the optical tracker. In dynamic tracking mode, the tracker maintains the scanner's position without applying markers to most parts. The UE Nova unit can be detached for handheld capture with a field of view up to 2.6 by 2.2 m.

This layout is better suited to large castings, vehicle structures, fabricated assemblies, construction equipment, and components that would otherwise require frequent repositioning. The tracker must retain a usable line of sight, so cell layout, operator access, and surface occlusion still matter.

Accuracy depends on the measurement length

Both systems list single-shot accuracy of 0.02 mm. That number does not describe the complete large-part job. For a long workpiece, volumetric accuracy and the method used to establish the global reference are more useful decision points.

FreeScan Omni lists volumetric accuracy of 0.02 + 0.03 mm/m and a video-photogrammetry specification of 0.02 + 0.015 mm/m. FreeScan Trak Nova lists 0.062 mm within a 12 m³ tracking volume and 0.046 + 0.012 mm/m with video photogrammetry. These values come from controlled acceptance testing. The production result still depends on calibration status, thermal stability, surface preparation, target layout when used, scanner movement, and the inspection plan.

Do not select either system from the smallest accuracy number alone. Define the feature tolerance, maximum measurement length, allowable uncertainty, and reporting method first. If the result will support a formal acceptance decision, include measurement-system analysis and verification artifacts in the implementation plan.

Marker-free does not mean setup-free

FreeScan Trak Nova can scan most parts without markers while the tracker sees the handheld unit. Very large surfaces may still benefit from markers, especially when the tracker must be repositioned or when a long scan needs an additional global reference. FreeScan Omni uses markers in its metrology laser workflow and can use video photogrammetry to strengthen large-object consistency. Its infrared mode can use feature alignment when the surface provides enough geometry.

For either system, test the hardest real surface before purchase. A polished stamping, a black casting, and a painted assembly can produce different preparation and exposure requirements even when their overall dimensions are similar.

Software included with each system

Software is part of the equipment decision, not a separate afterthought.

• FreeScan Omni: the SKYLAB3D package includes FreeScan Omni desktop software and SHINING3D Inspect. The scanner also supports on-device inspection and reporting.
• FreeScan Trak Nova: FreeScan Trak software handles wide-range scanning, tracked detail capture, data fusion, feature recognition, and the inspection module.
• Downstream options: both workflows can exchange data with inspection and reverse-engineering platforms such as PolyWorks, Geomagic Control X, EXModel Pro, and Geomagic Design X. Confirm licenses and required deliverables during configuration.

A mesh-to-CAD deliverable may require additional reverse-engineering software. Inspection against an existing nominal CAD model follows a different software path. SKYLAB3D can quote the scanner, required software, workstation, training, and applicable protection options as one configured package.

Workstation and platform requirements

Do not plan a macOS workstation for either PC software path. Current official requirements list Windows, and no current macOS support is published for FreeScan Omni PC software or FreeScan Trak Nova software.

FreeScan Omni can complete many scan-to-inspect tasks on the scanner, which reduces field dependence on a workstation. A suitable Windows PC is still needed for desktop software, data management, and workflows that move into third-party applications.

Which system fits which inspection job?

• Choose FreeScan Omni when: a single operator needs a portable scan-to-report workflow, the work moves between cells or supplier sites, and the part can be covered effectively from a handheld position.
• Choose FreeScan Trak Nova when: large-area coverage, marker-free optical tracking, and a stable global frame are central to the job, especially for vehicles, large fabrication, castings, or heavy equipment.
• Run an application test when: the tolerance is tight relative to the overall part length, the surface is highly reflective or dark, hidden features matter, or the inspection result will support formal acceptance.

Plan the implementation, not only the purchase

A reliable deployment should include a representative-part acceptance test, operator workflow, calibration and verification procedure, file-management policy, inspection template, and ownership for software updates. Training should cover the actual part family and reporting standard. On-site training is available plus travel expenses.

Before the demo, prepare the nominal CAD model, tolerance callouts, expected reporting format, part dimensions, surface description, and the longest measurement span. Those details expose the real fit much faster than a general product demonstration.

Sources and further reading

• FreeScan Omni Series specifications and software
• FreeScan Trak Nova specifications and software
• FreeScan Omni system requirements
• FreeScan Trak Nova system requirements

Compare the live FreeScan Omni standalone inspection scanner and FreeScan Trak Nova optical tracking system, review SKYLAB3D's industrial 3D inspection workflow guidance, or browse the industrial 3D scanner collection. For a closely related large-part workflow, see the FreeScan Trak Nova heavy-equipment refurbishment guide.

Ask SKYLAB3D to review the inspection application