Reverse Engineering CAD Services
Guenzo converts physical parts, 3D scans, legacy 2D drawings or competitor products into parametric 3D CAD with full manufacturing documentation. We rebuild the design intent so the new model can be modified, optimized and produced.
What Guenzo Reverse Engineers
Reverse engineering covers single components through to complete mechanical assemblies, for spare parts, redesign or a new production run.
- Individual mechanical parts and components: machined, cast and sheet metal
- Complete mechanical assemblies, with the fits and interfaces between parts rebuilt
- Spare parts and sub-assemblies for legacy and industrial machinery
- Parts whose supplier or original drawings are no longer available
- Existing or competitor products that need to be reproduced or improved
What You Can Start From
Most projects start from whatever survives of the original, and combining several inputs gives the most reliable model. Work is delivered remotely from Liepāja, Latvia, to clients across Europe and internationally; photos, scan files and drawings are shared by email or a shared cloud folder.
- A physical sample part, new or worn
- Measurements and photos taken on site
- 3D scan data, such as STL meshes
- Old paper drawings, PDFs or 2D CAD (DWG, DXF)
- Notes on how the part fits, moves or fails in the machine
Who this service is for
- Companies maintaining legacy machinery or spare parts
- Manufacturers replacing obsolete suppliers
- Engineering teams improving existing products
Problems we solve
- Spare parts for machines whose drawings or suppliers are gone
- Competitor or legacy parts that must be reproduced or improved
- 3D scan data that needs to become editable CAD
- Paper drawings that need to become parametric 3D models
Deliverables
- Parametric 3D CAD (SolidWorks, STEP)
- PDF manufacturing drawings
- DXF flat patterns for sheet metal
- Material and process recommendations
- Tolerance and fit analysis vs. the original
Software we use
- SolidWorks (parts, assemblies, drawings)
- Mesh-to-CAD workflows from STL / scan data
- DraftSight / AutoCAD for legacy 2D conversion
- Calipers, micrometers, gauges and (where needed) 3D scanning
Supported manufacturing methods
- CNC milling and turning
- Sheet metal: laser, bending, welding
- Cast and forged parts (machined to drawing)
- 3D printing for fit checks before machining
Example projects
- Spare part for a discontinued machine rebuilt from a sample
- Legacy 2D drawings converted to parametric 3D CAD
- 3D scan converted into clean engineering CAD
Process
- Inputs: Sample parts, measurements, photos, 3D scan data and any drawings that survive.
- Measurement and analysis: Dimensions taken with calipers, micrometers and gauges; function, fits and mating parts reviewed.
- Parametric CAD reconstruction: SolidWorks features rebuilt to the design intent, not to the wear or scan noise of one sample.
- Verification: Model checked against the sample, scan and mating parts; open questions flagged for you to confirm.
- Manufacturing documentation: Drawings, STEP and native files, plus assembly drawings and BOMs where applicable.
3D Scan to Parametric CAD
A scan mesh records the surface of a part, not its design. Guenzo uses the scan as a reference and rebuilds the part as parametric SolidWorks features — planes, holes, bosses, fillets — so the model can be edited, toleranced and drawn. Where it can be recovered, the original design intent is restored: nominal sizes, symmetry, standard holes and fits rather than the wear or scan noise of one sample.
- Accuracy follows the inputs: a scan or worn sample shows the part as it is now
- Critical dimensions are checked against mating parts, fits or surviving drawings
- Open questions are flagged for you to confirm before release
Documentation After Reverse Engineering
The reconstructed model is released as a production-ready package your suppliers can quote and make from.
- Native SolidWorks parts and assemblies, plus STEP for any CAD system
- Manufacturing drawings with dimensions, tolerances and process notes
- Assembly drawings where the job covers more than one part
- Bills of materials for reverse-engineered assemblies
- DXF flat patterns for sheet metal parts
Frequently Asked Questions
Can you reverse engineer a physical part?
Yes. We work from measurements, photos, 3D scans or sample parts and rebuild the design as parametric CAD with manufacturing drawings.
Can you reverse engineer a whole assembly, not just single parts?
Yes. Each part is measured and modelled, then the parts are assembled in SolidWorks so fits, clearances and interfaces between them can be checked. The result includes part and assembly drawings and a BOM for the assembly.
Can 3D scan data be turned into editable SolidWorks CAD?
Yes. The scan mesh, usually STL, is the reference for rebuilding the part as a parametric SolidWorks model with real features — holes, faces, fillets — rather than a surface copy of the mesh, so the model can be edited and drawn. STEP is supplied alongside the native files.
Can you rebuild parts for old machinery with no original drawings?
Yes. Spare parts and sub-assemblies for legacy or discontinued machines are rebuilt from worn or sample parts, measurements and photos, plus any drawings that survive. Where wear has changed a part, functional dimensions are set from how it fits its mating parts rather than copied from the worn surface.
Will I get manufacturing drawings after reverse engineering?
Yes. The reconstructed CAD is released with manufacturing drawings — dimensions, tolerances and notes for the intended process — plus STEP files and, for sheet metal, DXF flat patterns, so a supplier can quote and make the part.
Do you work with companies outside Latvia?
Yes. We work remotely with companies across Europe and internationally. Most projects are run by email, video calls, and shared cloud folders.
What CAD file formats can you deliver?
Native SolidWorks (SLDPRT, SLDASM, SLDDRW), STEP, IGES, Parasolid, STL for 3D printing, DXF for laser/waterjet/sheet metal, and PDF manufacturing drawings.
Can you sign an NDA before we share project details?
Yes. We routinely sign NDAs before reviewing concepts, sketches, or existing CAD data.
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Request CAD design support
Send your project details, sketches, requirements or existing CAD files. Email info@guenzo.com or call +371 29830475.