Thrust roller bearing
- Status
- Within tolerance
- Volume error
- 6.9 × 10−8
- Steps
- 9 operations
- Run time
- 166 s
// Closed-loop parametric reconstruction
Stop guessing whether the rebuild matches.
One step further than CAD: verified designs, for every engineer.
3D2U turns a dumb STEP file into an editable model. Then it measures the result against the original, before it hands it to you.
- Deterministic
- Closed-loop
- No CAD seat
Thrust roller bearingMeasured
StatusWithin tolerance
Volume error6.9 × 10−8
Missing materialnone
// The problem
Every rebuild tool hands you a model. Then you spend an hour checking it, because nobody tells you if it is right. That is the verification tax.
STEP file
Rebuild
You, by hand
- Overlay
- Measure
- Walk the feature tree
- Fix
- Repeat
Final
“The measurements are not right.”
Pablo, mechanical engineer, on why engineers stop trusting rebuild tools
// The solution
Other tools give you a rebuild. 3D2U gives you the rebuild and the check.
STEP file
Rebuild + measure
one closed loop
Verified final
Input
A dumb STEP file. No history, no features.
Output
An editable rebuild as STEP, plus a report with the measured error and the tolerance.
Method
Deterministic geometry. No LLM, no guessing. Every accepted step is measured by volume.
Privacy
Your part files never leave your machine. No CAD seat needed.
StatusPartial
Volume error44 %
// What the check catches
Red is material the rebuild missed.
Here the rebuild missed 44 % of the volume. 3D2U measures that, labels the part partial, and shows you where. It does not hand it to you as done.
- Rebuild
- Missing material
- Extra material
// The transformation
Turn dead STEP files into verified, editable models.
Most of the world's parts live as dumb STEP files. 3D2U rebuilds them and measures every one. Watch both paths run.
// Upcoming integrations
Today: a standalone app that reads and writes STEP. Next: inside the CAD you already use.
- SolidWorksUpcoming
- Fusion 360Upcoming
- OnshapeUpcoming
- FreeCADUpcoming
- CreoUpcoming
Integrations are planned, not shipped. Tell us which one you need first, here.
// Who builds it
Built by an engineer who knows the pain.
Our founder has worked across the factories of Europe for 15 years. We know how it feels to take a CAD file off the screen, only to rebuild it again and again.
3D2U removes the verification tax, so the work moves at the speed of the engineer.
// Demo · real parts, real runs
Three real parts. Rebuilt and verified.
Each part ran through the engine. Switch between the original, the rebuild and the check.
Cable clip, 2 solids
- Status
- Within tolerance
- Volume error
- 4.8 × 10−7
- Steps
- 15 operations
- Run time
- 46 s
DN50 dryer adapter
- Status
- Within tolerance
- Volume error
- 5.2 × 10−9
- Steps
- 11 operations
- Run time
- 108 s
Volume error = measured difference in volume between the original and the rebuild, as a fraction of the original. Features found where possible; the rest is kept as measured surface patches.
// Keep in touch
Have a STEP file that never rebuilds right? Send us a note.
We are opening early access to engineers and teams. Tell us what you work on and we write back.
Or email us: connect@railnexus.com