Convert any physical part into accurate 3D CAD models and 2D engineering drawings using advanced 3D scanning technology. NABL accredited. 1000+ reverse engineering projects completed across automotive, aerospace, foundry and precision engineering industries.
Reverse engineering is the process of analysing an existing physical component and recreating its design data — typically a 3D CAD model and 2D engineering drawing — without the original drawings or design files. This is done when the original design documentation has been lost, is unavailable, or when you need to manufacture a part that was originally made without CAD.
At Unique Measurement Service, we use advanced 3D scanning technology — including GOM blue light scanning, portable arm scanners, and handheld 3D scanners — to digitise your physical part with accuracy up to ±0.02 mm. Our engineers then process the scan data into fully parametric, feature-based 3D CAD models and GD&T-annotated 2D drawings in your preferred format (STEP, IGES, SolidWorks, CATIA, AutoCAD, and more).
With over 1,000 reverse engineering projects completed since 2015, Unique Measurement Service is the most trusted reverse engineering company in Chennai for automotive OEMs, tier-1 suppliers, foundries, tool rooms, and engineering companies.
Our clients in Chennai use reverse engineering in a wide range of real-world manufacturing and engineering situations.
Your original CAD file or 2D drawing was lost, corrupted, or never existed. We recreate it from the physical part.
An obsolete component needs to be manufactured again but the supplier no longer exists and no drawing is available.
A worn or damaged mould, die, or forming tool needs to be restored. We scan the original and produce new manufacturing drawings.
Sand casting patterns that were made by hand need to be converted to CAD for CNC machining or 3D printing of the new pattern.
You want to redesign or improve an existing part for better performance, lighter weight, or lower manufacturing cost.
Your engineering team wants to analyse the geometry and design of a reference product to develop your own design.
Your QC team needs to inspect a manufactured part but no CAD reference exists. We create the reference model first.
You want a complete digital inventory of all tooling, jigs, fixtures, and components as a backup for future manufacturing.
Our end-to-end reverse engineering service takes your physical part and delivers production-ready CAD data in 5 structured steps.
Digitise the part with the most suitable scanner for maximum accuracy.
Clean, align, and process the raw scan data into a watertight mesh or point cloud.
Generate parametric or NURBS CAD surfaces from the scan data.
Create GD&T annotated 2D drawings with all critical dimensions and tolerances.
Deliver CAD and drawings in your preferred format with a quality check report.
Fully parametric SolidWorks, CATIA, Creo, or NX model reconstructed from your physical part. Feature-based modelling for easy editing.
GD&T annotated 2D drawings in AutoCAD DWG, PDF, or DXF format with all critical dimensions, tolerances, and surface finish callouts.
Convert STL mesh files from 3D printing or scan data into solid STEP/IGES CAD geometry for manufacturing use.
Reverse engineer sand casting patterns, PDC tools, and GDC dies. CAD model and 2D drawing for pattern shop or CNC machining.
Reverse engineer injection moulds, press tools, forming dies, and jigs & fixtures for repair, replication, or redesign.
Convert 3D scan data of large structures, plant layouts, or mechanical assemblies into 3D CAD or BIM models for engineering use.
Every reverse engineering project from Unique Measurement Service includes professional, production-ready deliverables.
STEP, IGES, SolidWorks, CATIA, Creo, or NX — your choice of format.
AutoCAD DWG or PDF with dimensions and GD&T tolerances.
For 3D printing or inspection reference.
Deviation colour map showing accuracy of the final model vs scanned part.
Point cloud data provided on request for your own use.
Our team explains the model and answers any technical questions.
See why companies in Chennai are switching from manual measurement to 3D scan-based reverse engineering.
| Factor | Traditional (Manual Measurement) | 3D Scan-Based (Our Method) |
|---|---|---|
| Accuracy | ±0.2–0.5 mm (depends on operator) | ±0.02–0.05 mm (scanner controlled) |
| Complex Surfaces | Very difficult — can't measure freeform curves | Easy — full surface captured in minutes |
| Speed | Hours to days for a complex part | Minutes to scan; CAD delivered in 24–48 hrs |
| Data Output | Dimensions only — no surface data | Full 3D point cloud, mesh, and CAD model |
| Risk of Error | High — human measurement errors | Low — automated, traceable measurement |
| Large Parts | Very time-consuming and difficult | Efficient with portable arm or handheld scanner |
Our reverse engineering clients in Chennai and Tamil Nadu span virtually every manufacturing sector.
We are Chennai's most experienced reverse engineering company, with over 1,000 completed projects and a dedicated team of metrology engineers and CAD designers. As a NABL accredited laboratory (ISO/IEC 17025:2017), our measurements are traceable, reliable, and accepted by leading OEMs and quality systems worldwide.
We own and operate the full range of 3D scanning equipment — from GOM ATOS structured light scanners for high-accuracy small parts to FARO portable arms for on-site large component scanning. We deliver CAD models in any format your design team uses, and our 2D drawings are production-ready with full GD&T annotation. With offices in Chennai, Coimbatore, Bangalore, Hosur, and across India, we are always close to your facility.
Share your part photo or drawing — we respond within 2 hours with a quote and timeline.
Request Free Quote 📞 Call +91 99652 51951GOM, Blue Light, Laser & Handy 3D scanning for inspection and digitisation.
Learn More →Structured light scanning for complex surfaces with colour map reports.
Learn More →Plastic and metal 3D printing from your reverse engineered CAD data.
Learn More →