3D scanning large objects requires a different approach than scanning a small part on a turntable. Vehicles, boats, large sculptures, industrial equipment, and architectural elements need careful planning to capture accurate data across big surfaces. Our 3D scanning team in Los Angeles scans large items regularly for restoration, reproduction, design, and documentation. Here is how it works and what to expect.
What Counts as a “Large” Object?
For scanning purposes, large usually means anything you cannot easily place on a table: car bodies, motorcycles, boat hulls, statues, furniture, machinery, signs, and building features. These objects can range from a few feet to many meters across, and that size affects equipment choice, setup, and accuracy.
Scanning Methods for Large Objects
Handheld structured-light and laser scanners
Handheld scanners are moved around the object to capture its surface. With reference targets placed on or around the object, they can capture large items in sections and stitch them together accurately. This is our most common approach for vehicles, sculptures, and equipment.
Photogrammetry
Photogrammetry builds a model from many overlapping photos. It handles very large objects well and captures realistic color, making it popular for sculptures, monuments, and visual reference. For engineering accuracy, it is often combined with measured scale references.
Long-range and terrestrial scanning
For buildings, rooms, and site-scale projects, tripod-mounted long-range scanners capture large spaces quickly as point clouds.
Keeping Accuracy Over Large Distances
The bigger the object, the more small errors can accumulate as scans are stitched together. We control this with:
- Reference targets or markers placed strategically on and around the object.
- Overlapping scan sections so the software can align them reliably.
- Scale bars or measured reference distances.
- Photogrammetry frameworks for very large items, used as a backbone for detailed scans.
On-Site vs. In-Studio Scanning
Many large objects cannot be moved easily. We can scan on-site at your shop, warehouse, studio, or production location. Plan for access around the object, reasonable lighting, and space to move. Outdoor scanning works best out of direct harsh sunlight, so timing matters.
Preparing a Large Object for Scanning
- Clean the surface of dust, oil, and loose debris.
- Remove covers, tarps, and anything that does not belong in the scan.
- Make sure all sides you need captured are accessible, including undersides if needed.
- Discuss shiny, chrome, or very dark surfaces in advance; a temporary matte spray may be required.
What You Get
Depending on your project, deliverables may include a cleaned mesh (STL, OBJ, or PLY), a textured color model, a point cloud, or a reverse-engineered CAD model. Large meshes can be very heavy, so we can deliver both full-resolution data and lighter versions for easy viewing.
Common Large-Scale Projects
- Classic car bodies for restoration and part reproduction
- Boat hulls and decks for custom fittings
- Public art and sculptures for enlargement, reduction, or archiving
- Industrial machines for retrofits and guarding
- Film and event set pieces for duplication
Cost and Time
Large scans take more time for setup, capture, and processing, so they cost more than small part scans. The final price depends on size, required accuracy, surface complexity, location, and deliverable type. We are happy to visit or review photos to scope the job.
Scan Big Projects in Los Angeles
eCadCam has more than 22 years of experience in scanning and 3D modeling. Visit us at 4212 San Fernando Rd, Glendale, CA 91204, call 213.489.1173, or request a quote to plan your large-object scan.