Your source files remain untouched and are returned in the package.
Your old CAD files
are not dead yet.
If your drawings are trapped in a 30-year-old CADKEY workstation, the first question is not “can somebody convert them?” It is: what actually survived in the files?
A real manufacturing drawing, recovered from PRT.
This closed-cab kick panel came from a legacy CADKEY file. The native DXF preserves the drawing geometry, dimensions, leaders, and annotations so it can be inspected in current CAD software.


Toy clamp assembly
Native geometry exported for inspection outside CADKEY.
Download DXF →
Air pump assembly
A larger legacy drawing carried through the native export path.
Download DXF →
An archive you can audit, not a mystery folder.
The primary recovery artifact for geometry, dimensions, annotations, and inspection.
A second native interchange artifact, validated as a real CAD container.
Per-file status, export logs, sizes, hashes, and explicit failures.
Recovery is not the same as manufacturing approval.
Some files convert cleanly. Some contain drawing geometry but no verified solid. Some have uncertain units, missing tolerances, or construction geometry that needs review.
Those distinctions stay visible in the report. A renderable mesh is not silently called a solid, and a usable DXF is not silently called manufacturing-ready.
Automated first pass.
Dirty results, lower rate.
For a large archive where the goal is triage, the automated pipeline can process files in bulk and return everything it can recover without spending time on every exception.
You get the source-preserving package, native exports where possible, logs, and a list of files that need human attention. It is the right choice when finding the valuable 80% matters more than polishing every part.
- Large PRT collections
- Internal inventory projects
- “Tell us what is recoverable” work
- Manual cleanup later
How the recovery works.
The reverse-engineering work and interactive viewer are available for people who want to inspect the method. The native DXF remains the ground truth; web previews and optional meshes are presentation or interchange derivatives.
Start with a small, useful answer.
Up to 25 files, representative recovery, unit/dimension review, and a written recommendation.
Native DXF/DWG recovery, preserved originals, reports, checksums, and a downloadable package.
$750 minimum projectLower-rate archive triage with dirty-but-useful results and exceptions clearly identified.
Best for large collectionsInvestigation, retries, cleanup, ambiguous files, and engineering review support.
Optional STL/mesh attempts quoted separatelyHave a disk, folder, or forgotten workstation?
Send the file count and a representative sample. The assessment tells you what is actually recoverable before you commit to a full conversion.
Start an assessment →Technical sample files and interactive viewer
The older research viewer and sample downloads remain below for technical comparison.
toyclip-native.dxf · air-native.dxf · 4pinplug-native.dxf