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AI product engineer · Text → CAD → Prototype

Text to STEP

Text to STEP File Generator

Generate B-Rep STEP files from natural language. Import directly into SolidWorks, Fusion 360, or Onshape.

STEP files are the industry standard for exchanging CAD data between engineering tools. Ragnar CAD generates true B-Rep (boundary representation) geometry, not meshes, so your models are fully editable in any professional CAD software. Describe your part, get a STEP file, import it, and keep working.

No credit card required. 15 credits a month.

New Design

STEP·STL·DXF·GLBReady to export

STEP AP214, supported everywhere

The files use STEP AP214, which is supported by SolidWorks, Fusion 360, Onshape, FreeCAD, CATIA, NX, and every other major CAD tool on the market. Import them and keep working exactly as you would with hand-modeled geometry.

Real features, not frozen shapes

Fillets stay as true arcs. Holes are proper cylinders. Threads follow real pitch specifications. Feature recognition tools in your CAD software can pick these up and let you modify them directly.

A clean starting point for manufacturing

Whether you need a quick prototype for 3D printing or a production part for CNC machining, the STEP output from Ragnar gives you a clean starting point that saves hours of manual modeling.

Real Examples

See It in Action

Real prompts, real results. Watch how Ragnar CAD generates precise, editable models.

01

A two-stage gearbox with housing, shafts, and gears

Builds a complete gear train with housing, shafts, meshing gears, and bearing seats as a STEP assembly.

STEP

02

A shock absorber with spring, damper body, and mounting eyes

Creates a precision shock absorber with spring geometry, damper housing, and mounting hardware as a STEP assembly.

STEP

03

A wall hook for my shelving, two hooks and keyhole mounts

Produces a clean single-part hook with keyhole slots and exact mounting geometry.

STEP

Why Ragnar CAD

Built for Real Engineering

Not a toy. Production-grade CAD geometry you can actually manufacture.

01

True B-Rep geometry, fully editable in any CAD software

02

Direct import into SolidWorks, Fusion 360, Onshape, FreeCAD

03

Engineering features: fillets, chamfers, threads, patterns

04

Industry-standard STEP AP214 format

05

Real engineering geometry for manufacturing, not mesh

No credit card required·Works in browser·STL + STEP export·Cancel anytime

FAQ

Frequently asked questions

STEP (Standard for the Exchange of Product Data, ISO 10303) is the industry-standard format for exchanging CAD geometry. STEP files contain true B-Rep data with mathematically precise surfaces and edges that can be fully edited in SolidWorks, Fusion 360, Onshape, and other professional CAD software.

With Ragnar CAD, describe your part in plain English including dimensions and features. The AI generates B-Rep geometry and exports it as a STEP AP214 file. The file imports directly into SolidWorks, Fusion 360, Onshape, FreeCAD, or any software that reads STEP.

STEP stores mathematically exact B-Rep geometry with true curves, surfaces, and feature data. STL stores triangulated mesh approximations. STEP files are fully editable in CAD software, while STL files are primarily used for 3D printing. For engineering workflows, STEP is preferred.

Ragnar CAD exports STEP AP214, supported by all major CAD software: SolidWorks, Fusion 360, Onshape, FreeCAD, CATIA, NX, Creo, Inventor, and Solid Edge. Features like holes, fillets, and extrusions can be recognized using feature recognition tools.

Yes. Ragnar generates true B-Rep geometry with precise dimensions. The STEP files work directly with CNC programming software, can be used for injection mold design, and support creating 2D manufacturing drawings in any professional CAD tool.

B-Rep (boundary representation) defines 3D shapes using exact mathematical surfaces, edges, and vertices. True circles stay circular, fillets have exact radii, and geometry can be measured and edited precisely. Ragnar CAD generates B-Rep natively, which is why its STEP files are fully editable.

Ragnar · Text to CAD

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Go from a text prompt to a STEP file in minutes. Open it in SolidWorks, Fusion 360, or any professional CAD tool.