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AI product engineer · Text → CAD → Prototype

Image to CAD

Image to CAD: Turn Any Image into a 3D Model

Upload a napkin sketch, photo, or technical drawing. Get a precise, editable CAD model with STEP export.

Stop redrawing from scratch. Ragnar CAD converts any visual reference into precise 3D CAD models: hand-drawn sketches, product photos, engineering diagrams, whiteboard drawings. The AI interprets shapes, dimensions, and features from your image and builds editable B-Rep geometry you can refine and export.

No credit card required. 15 credits a month.

New Design
Photo of a Raspberry Pi board attached to the prompt

STEP·STL·DXF·GLBReady to export

From photo to fitted part

Photograph a circuit board and ask for a protective case around it. Snap the parts you already have and get the chassis that ties them together. Drop in a technical drawing and let the AI extract the geometry automatically.

Combine images with words

Add a text description alongside your image to specify dimensions, materials, or features the photo alone can't capture. The AI handles perspective correction, scale estimation, and feature extraction, so a reference photo becomes a finished STEP file without tracing geometry by hand.

Refine the CAD model in conversation

Once the initial model is ready, iterate by describing changes. Ask for tighter tolerances, additional mounting holes, or a different wall thickness and Ragnar updates the model in place. Export STEP, STL, DXF, or GLB when it's right.

Real Examples

See It in Action

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

01

Make a protective case for this circuit board

Reads the board from a photo and builds a ventilated case with port cutouts and a snap-fit lid around it.

STEP

02

A wall rack that docks these six shaker bottles

Interprets the bottles from a photo and generates a wall-mounted holder with six sized openings.

STEP

03

A chassis that fits these wheels and this battery pack

Builds an RC car chassis with axle mounts and a battery tray sized to the parts in your photo.

STEP

Why Ragnar CAD

Built for Real Engineering

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

01

Works with sketches, photos, and technical drawings

02

AI interprets shapes, dimensions, and features from any image

03

Editable output you can refine by describing changes in plain English

04

Export as STEP for professional CAD software

05

From reference photo to printable model in minutes

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

FAQ

Frequently asked questions

Image to CAD converts visual references like sketches, photos, or technical drawings into precise 3D CAD models using AI. Upload an image and Ragnar CAD interprets shapes, dimensions, and features to create editable B-Rep geometry with STEP export.

Ragnar CAD works with hand-drawn sketches, whiteboard photos, product photographs, and 2D technical drawings. Clear images with good contrast produce the best results. You can supplement any image with text describing dimensions or features.

Accuracy depends on the input image. Technical drawings with dimension annotations produce the most precise models. Rough sketches create reasonable starting geometry that you can refine through conversational iteration.

Yes. Upload a product photo and Ragnar CAD interprets the geometry to create a 3D model. For best results, include a description with approximate dimensions. The AI extracts shapes and features from the photo and generates editable B-Rep geometry.

3D scanning uses hardware to capture surface data as a point cloud or mesh. Image to CAD uses AI to interpret a 2D image and generate clean B-Rep geometry with proper faces, edges, and features, fully editable in CAD software.

Yes. After initial generation, describe changes in plain English: 'make it taller', 'add a 5mm fillet', 'move the hole to the center'. Ragnar CAD iterates on the model through conversation without requiring you to re-upload the image.

Ragnar · Text to CAD

Start Building

Ready to
Create?

Snap a photo, upload a sketch, or drop in a technical drawing. Ragnar turns it into a real CAD model you can edit and export.