AI 3D Model Generator
AI 3D Model Generator
Generate precise, editable 3D models from text descriptions. Real CAD geometry for engineering, 3D printing, and product design.
Describe any part in plain English and Ragnar builds real CAD geometry you can edit, manufacture, and 3D print. Not mesh approximations, but true B-Rep solids with precise dimensions that export as STEP, STL, DXF, or GLB.
No credit card required. 15 credits a month.
How AI 3D model generation works
Ragnar uses AI to interpret your description, then generates B-Rep geometry through a professional CAD engine. Specify exact dimensions and engineering features like threads, fillets, and boolean cuts, or keep it simple and let the AI figure out the details. Start with a description, then refine through conversation: 'make it taller', 'add M6 threaded holes', 'fillet the edges at 3mm'. The AI understands engineering intent and updates the existing model.
Real CAD geometry, not mesh
Most AI 3D model generators produce mesh files that look right but can't be precisely edited or manufactured. Ragnar generates true B-Rep (boundary representation) solids with mathematically exact surfaces, real arcs, and proper edges. Your models export as editable STEP files that open directly in SolidWorks, Fusion 360, Onshape, or FreeCAD.
From simple parts to full assemblies
Ask for a shelf hook, a ventilated electronics enclosure with a snap-fit lid, or a working mechanism like a spincast fishing reel with its crank and gear train. A simple part comes back in minutes, and a mechanism takes longer. Every result is real CAD geometry with proper faces, edges, and surfaces you can measure, modify, and manufacture from.
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
AI generates a full two-stage reduction with housing, shafts, and meshing gears as real CAD geometry.
02
Create a bicycle wheel
AI creates a complete multi-part 3D model with hub, spokes, and rim. Dimensionally accurate and exportable.
03
A ventilated enclosure for my electronics, snap-fit lid
AI creates a vented case with port cutouts and a snap-fit lid. Dimensionally accurate and exportable.
Why Ragnar CAD
Built for Real Engineering
Not a toy. Production-grade CAD geometry you can actually manufacture.
True B-Rep geometry, not mesh. Fully editable in any CAD software
Export STEP for engineering, STL for 3D printing, DXF for cutting, GLB for web
Generate multi-part assemblies with proper positioning
Iterate by conversation: refine models with plain English
No CAD experience required, just describe what you need
Hours of manual modeling become a few minutes of describing
FAQ
Frequently asked questions
An AI 3D model generator turns text descriptions or images into 3D models using artificial intelligence. Ragnar CAD produces real B-Rep (boundary representation) geometry with precise surfaces, edges, and dimensions instead of mesh approximations. The output is fully editable in professional CAD software.
Ragnar uses AI to interpret your text description, then generates B-Rep geometry through a professional CAD engine. Describe dimensions, features, and materials in plain English. The AI handles extrusions, fillets, boolean operations, threads, and multi-part assembly positioning automatically.
Mesh generators create triangulated surfaces that look right but can't be precisely edited or manufactured. Ragnar generates B-Rep (boundary representation) geometry with mathematically exact surfaces, true circles, and proper edges. The STEP files are fully editable in SolidWorks, Fusion 360, and other engineering software.
Yes. Ragnar exports STL files ready for 3D printing. Because the models are generated as precise B-Rep geometry first, the resulting STL meshes are clean and watertight. You can also export STEP for CNC machining or injection molding.
Ragnar offers a free plan with 15 credits a month. Credits are used while Ragnar works on your design. Exports don't use credits. No credit card required to start. Paid plans start at $10/month with Thorough and Deep modes, more credits and 1-month rollover, and volume discounts of 5 to 15 percent from 200 credits per month.
Ragnar exports STEP (AP214) for professional CAD editing in SolidWorks, Fusion 360, Onshape, and FreeCAD. STL for 3D printing. DXF for laser and plasma cutting. GLB for web viewing and AR. STEP is the industry standard for exchanging CAD data between engineering tools.
A simple part like a shelf hook or a bracket comes back in minutes, and a working mechanism with many parts takes longer. You can iterate on any model by describing changes in plain English.
Yes. Ragnar handles multi-part assemblies with proper part positioning, clearances, and mating surfaces. The AI decomposes complex designs into individual components, builds each one, then assembles them. Examples include a spincast fishing reel, an RC car chassis, and ventilated electronics enclosures.
Ragnar · Text to CAD
Start Building
Ready to Create?
Describe any part in plain English and get a precise, editable 3D model. Export as STEP, STL, or GLB. No CAD experience required.