Describe the enclosure, get real CAD
Housings, cases, and product parts with real wall thicknesses. Port cutouts, screw bosses, and snap-fit lips in plain language — export STEP for engineering or STL for printing.
Up to 160 trial credits where available · No credit card required
Brief → plan → model
Describe the object, dimensions, materials, and constraints. The agent turns the brief into editable CAD.
Select → ask → refine
Select the part you mean, ask for a change, and let the agent inspect the updated model.
Prompt2CAD turns a product concept into real CAD geometry — not a polygon-soup mesh you can't edit or fabricate. Describe an electronics enclosure with a recessed lid, a handheld device housing, a battery compartment, or a desktop appliance case, and the AI generates a parametric 3D model with precise wall thicknesses, bosses, ribs, and clearances. Iterate through conversation — "add a USB-C cutout on the back face", "thicken the boss walls to 2mm", "add a 0.4mm lip around the lid" — and tune every dimension with sliders. Export to STEP for Fusion 360 or SolidWorks, or STL for a print-in-place prototype, with every dimension in real-world millimetres.
From a brief or existing model to editable CAD
No CAD experience needed. The agent handles the modeling loop while you control the object, dimensions, and final export.
Brief the agent or open a model
Describe the object, upload a reference image, or open an existing DWG, DXF, SKP, OBJ, STL, or GLB model and continue designing from it.
The agent plans and builds
The agent asks for missing details when needed, plans the structure, and uses CAD tools to create real parametric geometry at the dimensions you specified.
Inspect and refine
The agent renders and checks its work from multiple angles. Use controls or say "make it wider" or "add a back panel" to refine the same model.
Present or hand off
Review the geometry-derived parts list, download it as CSV, or export STEP, DXF, OBJ, STL, or GLB for downstream CAD, prototyping, and production preparation.
How the CAD agent helps
Housings, cases, and shells
Electronics enclosures, handheld device housings, appliance shells, battery compartments — describe the product and the AI builds the geometry with real wall thicknesses.
Cutouts, bosses, and ribs
Add port cutouts, screw bosses, mounting ribs, and lid lips through conversation. The AI places them with sensible clearances you can then fine-tune.
Parametric controls
Wall thickness, fillet radius, lid clearance, mounting-hole pitch — every critical dimension becomes a slider you can drag to explore variations without re-describing the part.
Export for prototyping and engineering
Export to STEP for import into Fusion 360, SolidWorks, or FreeCAD, or STL for direct 3D printing. Real-world millimetres throughout — no unit conversion.
Built for makers and engineers
From DIY builders and product designers to mechanical engineers, people are using Prompt2CAD to design and iterate on real projects.
"I spent weeks trying other AI and modeling tools for built-in storage in oddly shaped rooms. Prompt2CAD was the first that gave me a precise design I could verify and build from, without needing a CAD background."
DIY home renovator, United States
"I designed a custom L-shaped walk-in closet, 240 by 140 cm, with oak panels, hanging sections, drawers, and recessed lighting. I described the layout in detail and refined the proportions as I went. Saved me a long session in modeling software."
Furniture designer, East Asia
"I needed a custom planter for a terrace with an unusual stepped floor, so the base had to follow an L-shape. I described the geometry, refined a few details, and walked away with something I could actually build from. Much faster than starting from scratch in CAD."
DIY builder, Italy
Brief the CAD agent
Include dimensions, constraints, materials, and intended use when you know them.
Parts list and CAD exports
Review a geometry-derived list of part IDs, dimensions, quantities, and materials, download it as CSV, or export the model for downstream CAD and prototyping. Verify production details before fabrication.
Simple, transparent pricing
Start free. Top up when you need more.
Free
No credit card required
Includes up to 160 trial credits where available, so you can create your first CAD model. AI chat is charged by actual token usage.
- Up to 160 trial credits where available
- Free PNG viewport exports
- Photorealistic AI renders (50 credits each)
- Unlimited projects
- Full AI chat & parametric controls
Pay as you go
Top up whenever you need
Includes 1,000 credits — typically ~10 new CAD models or ~20 model updates.
- Everything in Free
- STEP, DXF, 3MF, GLB, DAE, OBJ & STL exports unlocked
- Full parts list & CSV cut-list export
- Printable PDF drawings
- New CAD models typically ~100 credits, complex 150+
- Model updates typically ~50 credits, complex 80+
- Priority AI model access
Ready to model your custom build?
Describe your build, refine the dimensions with the agent, and export it to your workflow.
No CAD experience needed · Up to 160 trial credits where available · No credit card required.