Professional Scan-to-CAD Services
Convert physical parts into fully editable CAD files. High-precision 3D scanning with parametric CAD modeling in STEP, IGES, Solidworks, and other engineering formats. Based in Modesto, CA - we ship anywhere in the United States.
What is Scan-to-CAD?
Scan-to-CAD is the process of digitizing physical parts using high-precision 3D scanning, then converting the scan data into editable, parametric CAD models. Unlike simple 3D scanning which only produces mesh files (STL/OBJ), scan-to-CAD delivers production-ready engineering files in formats like STEP, IGES, Solidworks, Fusion 360, and other standard CAD formats.
This service bridges the gap between the physical world and digital design. You have a physical part but no CAD files? We scan it and convert it to a format your engineers can edit, modify, and use for manufacturing. The resulting CAD files can be imported into any CAD software, modified with standard modeling tools, and used for CNC machining, injection molding, 3D printing, or other manufacturing processes.
Our process combines professional 3D scanning equipment (±0.05mm accuracy) with experienced CAD engineers who create clean, editable geometry. Unlike automated mesh-to-CAD converters which produce messy, un-editable surfaces, our hand-crafted models feature proper constraints, parametric features, and design intent.
Why Parametric CAD Files Matter
Mesh Files (STL/OBJ)
- • Just a 3D surface (like a skin)
- • Cannot be edited or modified
- • No dimensions or constraints
- • Only good for 3D printing
- • Cannot export to CNC/CAM
- • No features (holes, fillets, etc.)
- • Large file sizes
Parametric CAD (STEP/IGES)
- • Fully editable solid models
- • Modify dimensions easily
- • Includes design intent
- • Universal format (any CAD software)
- • Ready for manufacturing (CNC, molding)
- • Features preserved (holes, fillets)
- • Compact file sizes
Example: Need to change a mounting hole from 8mm to 10mm? With a parametric CAD file, you select the hole and change the dimension. With an STL file, you'd need to re-scan the entire part. Parametric files save time and money.
When You Need Scan-to-CAD Services
Lost or Missing CAD Files
Original design files were lost, corrupted, or in an obsolete file format? We recreate the CAD model from your physical part. Common after company acquisitions, retirements, computer crashes, or transitions between CAD platforms.
Design Modifications & Improvements
Need to modify an existing part but don't have editable CAD files? We scan it and deliver STEP/IGES files you can edit in any CAD software. Make design improvements, add features, change dimensions, or adapt for new applications.
Manufacturing-Ready Files for CNC/Molding
Need CAD files for CNC machining, injection molding, or traditional manufacturing? STL files won't work - you need STEP or IGES. We deliver engineering-quality CAD files compatible with CAM software and manufacturing processes.
Creating Digital Archives of Physical Parts
Build a digital library of critical parts for long-term equipment maintenance. Store CAD files instead of physical spare parts inventory. Manufacture parts on-demand when needed instead of warehousing inventory.
Quality Control & First Article Inspection
Compare as-manufactured parts to design specifications. Create CAD models from production samples for dimensional verification, tolerance analysis, and first article inspection (FAI) reports.
Aftermarket Product Development
Developing aftermarket accessories or replacement parts? Scan the OEM parts to get precise dimensions for designing compatible products. Common for automotive, consumer electronics, and industrial equipment accessories.
Our Scan-to-CAD Process
Part Submission
Ship your part to us (we return it after scanning) or bring it to our Modesto, CA location. For local customers, we can often scan and return the same day. Include any information about how the part is used and what format you need (STEP, IGES, Solidworks, etc.).
Timeline: Same day quote after receiving part
High-Precision 3D Scanning
We capture your part using professional 3D scanning equipment with ±0.05mm accuracy. The scan captures all external surfaces, features, and geometry. For parts with internal features, we document those separately through measurements or sectioning (if agreed).
Timeline: 1-3 hours depending on part size/complexity
CAD Model Creation
Our CAD engineers convert the scan data into a parametric solid model. Unlike automated converters, we hand-craft clean geometry with proper design intent: holes are actual holes (not surfaces), fillets are real fillets, features are identifiable and editable. The result is a professional CAD model, not a converted mesh.
Timeline: 2-4 days depending on complexity
Quality Verification
We overlay the CAD model on the scan data to verify accuracy. Critical dimensions are checked and documented. We ensure the model matches the physical part within specified tolerances (typically ±0.1-0.2mm for most applications).
Timeline: 0.5-1 day
File Delivery
You receive the CAD files in your requested formats: STEP, IGES, Solidworks, Fusion 360, Inventor, Parasolid, or other standard formats. We also include the original scan data (STL/OBJ mesh) and a dimensional comparison report. Your physical part is returned to you.
Timeline: Same day digital delivery
Rush Service Available
Need it faster? Rush service (2-3 days) available for urgent projects. For local Modesto customers, same-day scanning with 24-48 hour CAD model delivery is often possible. Call (256) 322-3403 to discuss your timeline.
CAD File Formats We Deliver
Universal Formats
- STEP (.stp, .step): Most widely supported, preferred for CNC
- IGES (.igs, .iges): Universal CAD format, older standard
- Parasolid (.x_t, .x_b): High-quality kernel format
- STL/OBJ: Mesh files for 3D printing (included free)
Native CAD Formats
- Solidworks (.sldprt): Solidworks parts and assemblies
- Fusion 360 (.f3d, .f3z): Fusion 360 archives
- Inventor (.ipt): Autodesk Inventor parts
- Other formats: Available upon request
Not sure which format you need?
STEP (.step) is the safest choice - it's universally supported by all major CAD software and preferred by most machine shops. If you use a specific CAD program, we can deliver in that native format as well.
Industries We Serve
Product Development & Engineering
Design modifications, aftermarket development, competitive analysis, design validation
Manufacturing & Production
Quality control, first article inspection, tooling design, legacy part documentation
Automotive & Motorsports
Performance parts development, restoration parts, custom fabrication, reverse engineering
Medical Devices
Legacy medical equipment parts, custom surgical tools, prosthetics, anatomical models
Aerospace & Defense
Obsolete aircraft parts, quality inspection, tooling design, documentation for FAA compliance
Consumer Products
Product redesign, accessory development, packaging design, competitive analysis
Frequently Asked Questions
What's the difference between Scan-to-CAD and Reverse Engineering?
Scan-to-CAD: Captures the part "as-is" with high accuracy, converting scan data to a parametric CAD model that matches the physical part.
Reverse Engineering: Includes scan-to-CAD but also involves analysis, design intent interpretation, and often improvements or modifications. More comprehensive documentation and analysis.
For most applications where you just need editable CAD files, Scan-to-CAD is sufficient and more cost-effective. See our Reverse Engineering service for complex projects.
How accurate is the CAD model compared to my physical part?
Our 3D scanning is accurate to ±0.05mm (0.002"), and CAD models typically match within ±0.1-0.2mm depending on part size and complexity. For critical dimensions, we can measure and verify specific features to tighter tolerances. We provide a dimensional comparison report showing accuracy.
Do I need to send you the physical part?
Yes, we need the physical part for 3D scanning. Ship it to us (we'll return it after scanning) or bring it to our Modesto, CA location. Local customers can often drop off and pick up the same day. We handle parts carefully and return them in the same condition.
Can the CAD files be edited in my CAD software?
Yes! That's the whole point. STEP and IGES files can be imported into ANY CAD software (Solidworks, Fusion 360, Inventor, Onshape, FreeCAD, etc.) and edited with standard modeling tools. Features like holes, fillets, and chamfers are real parametric features, not just surfaces.
What if my part has internal features I can't see?
External 3D scanning only captures visible surfaces. For internal features (hidden cavities, internal threads, etc.), we can document them through measurement if you provide access (disassembly), or we can CT scan the part (additional cost). Most parts have external features only.
Can you scan and convert multiple parts or assemblies?
Absolutely! We scan each part individually and can deliver them as an assembly with proper mating relationships. This is ideal for recreating mechanisms, documenting legacy equipment, or developing aftermarket accessories that need to fit existing products.
How much does Scan-to-CAD cost?
Pricing starts at $150 for simple parts and varies based on size, complexity, and required accuracy. Most projects range from $150-$800. Complex parts with many features may cost more. We provide fixed quotes upfront after reviewing your part (photos or in-person). Volume discounts for multiple parts.
Can you also manufacture the part after creating the CAD file?
Yes! Many customers use our complete workflow: scan-to-CAD + manufacturing. We can 3D print prototypes, manufacture production quantities, or coordinate with CNC machine shops. See our Rapid Prototyping and Manufacturing services.
Get Started Today
Free quote within 24 hours. Editable CAD files delivered in 3-5 days.
Request Free Quote (256) 322-3403📍 Based in Modesto, CA
🚚 Ship Anywhere in USA
Pricing
*Final pricing based on part size, complexity, and required file formats. Fixed quote provided upfront.